List of Tables
Table 1. Global Hydrofoil Boat Market Size Growth Rate by Type, 2019 VS 2023 VS 2030 (US$ Million)
Table 2. Major Manufacturers of Fully Submerged Hydrofoil Boat
Table 3. Major Manufacturers of Cut-off Hydrofoil Boat (Semi-Submerged Hydrofoil Boat)
Table 4. Global Hydrofoil Boat Market Size Growth Rate by Application, 2019 VS 2023 VS 2030 (US$ Million)
Table 5. Global Hydrofoil Boat Production by Region: 2019 VS 2023 VS 2030 (K Units)
Table 6. Global Hydrofoil Boat Production by Region (2019-2024) & (K Units)
Table 7. Global Hydrofoil Boat Production by Region (2025-2030) & (K Units)
Table 8. Global Hydrofoil Boat Production Market Share by Region (2019-2024)
Table 9. Global Hydrofoil Boat Production Market Share by Region (2025-2030)
Table 10. Global Hydrofoil Boat Revenue Grow Rate (CAGR) by Region: 2019 VS 2023 VS 2030 (US$ Million)
Table 11. Global Hydrofoil Boat Revenue by Region (2019-2024) & (US$ Million)
Table 12. Global Hydrofoil Boat Revenue by Region (2025-2030) & (US$ Million)
Table 13. Global Hydrofoil Boat Revenue Market Share by Region (2019-2024)
Table 14. Global Hydrofoil Boat Revenue Market Share by Region (2025-2030)
Table 15. Global Hydrofoil Boat Sales Grow Rate (CAGR) by Region: 2019 VS 2023 VS 2030 (US$ Million)
Table 16. Global Hydrofoil Boat Sales by Region (2019-2024) & (K Units)
Table 17. Global Hydrofoil Boat Sales by Region (2025-2030) & (K Units)
Table 18. Global Hydrofoil Boat Sales Market Share by Region (2019-2024)
Table 19. Global Hydrofoil Boat Sales Market Share by Region (2025-2030)
Table 20. Global Hydrofoil Boat Sales by Manufacturers (2019-2024) & (K Units)
Table 21. Global Hydrofoil Boat Sales Share by Manufacturers (2019-2024)
Table 22. Global Hydrofoil Boat Revenue by Manufacturers (2019-2024) & (US$ Million)
Table 23. Global Hydrofoil Boat Revenue Share by Manufacturers (2019-2024)
Table 24. Hydrofoil Boat Price by Manufacturers 2019-2024 (US$/Unit)
Table 25. Global Key Players of Hydrofoil Boat, Industry Ranking, 2022 VS 2023 VS 2024
Table 26. Global Hydrofoil Boat Manufacturers Market Concentration Ratio (CR5 and HHI)
Table 27. Global Hydrofoil Boat by Company Type (Tier 1, Tier 2, and Tier 3) & (based on the Revenue in Hydrofoil Boat as of 2023)
Table 28. Global Key Manufacturers of Hydrofoil Boat, Manufacturing Base Distribution and Headquarters
Table 29. Global Key Manufacturers of Hydrofoil Boat, Product Offered and Application
Table 30. Global Key Manufacturers of Hydrofoil Boat, Date of Enter into This Industry
Table 31. Mergers & Acquisitions, Expansion Plans
Table 32. Global Hydrofoil Boat Sales by Type (2019-2024) & (K Units)
Table 33. Global Hydrofoil Boat Sales by Type (2025-2030) & (K Units)
Table 34. Global Hydrofoil Boat Sales Share by Type (2019-2024)
Table 35. Global Hydrofoil Boat Sales Share by Type (2025-2030)
Table 36. Global Hydrofoil Boat Revenue by Type (2019-2024) & (US$ Million)
Table 37. Global Hydrofoil Boat Revenue by Type (2025-2030) & (US$ Million)
Table 38. Global Hydrofoil Boat Revenue Share by Type (2019-2024)
Table 39. Global Hydrofoil Boat Revenue Share by Type (2025-2030)
Table 40. Hydrofoil Boat Price by Type (2019-2024) & (US$/Unit)
Table 41. Global Hydrofoil Boat Price Forecast by Type (2025-2030) & (US$/Unit)
Table 42. Global Hydrofoil Boat Sales by Application (2019-2024) & (K Units)
Table 43. Global Hydrofoil Boat Sales by Application (2025-2030) & (K Units)
Table 44. Global Hydrofoil Boat Sales Share by Application (2019-2024)
Table 45. Global Hydrofoil Boat Sales Share by Application (2025-2030)
Table 46. Global Hydrofoil Boat Revenue by Application (2019-2024) & (US$ Million)
Table 47. Global Hydrofoil Boat Revenue by Application (2025-2030) & (US$ Million)
Table 48. Global Hydrofoil Boat Revenue Share by Application (2019-2024)
Table 49. Global Hydrofoil Boat Revenue Share by Application (2025-2030)
Table 50. Hydrofoil Boat Price by Application (2019-2024) & (US$/Unit)
Table 51. Global Hydrofoil Boat Price Forecast by Application (2025-2030) & (US$/Unit)
Table 52. US & Canada Hydrofoil Boat Sales by Type (2019-2024) & (K Units)
Table 53. US & Canada Hydrofoil Boat Sales by Type (2025-2030) & (K Units)
Table 54. US & Canada Hydrofoil Boat Revenue by Type (2019-2024) & (US$ Million)
Table 55. US & Canada Hydrofoil Boat Revenue by Type (2025-2030) & (US$ Million)
Table 56. US & Canada Hydrofoil Boat Sales by Application (2019-2024) & (K Units)
Table 57. US & Canada Hydrofoil Boat Sales by Application (2025-2030) & (K Units)
Table 58. US & Canada Hydrofoil Boat Revenue by Application (2019-2024) & (US$ Million)
Table 59. US & Canada Hydrofoil Boat Revenue by Application (2025-2030) & (US$ Million)
Table 60. US & Canada Hydrofoil Boat Revenue Grow Rate (CAGR) by Country: 2019 VS 2023 VS 2030 (US$ Million)
Table 61. US & Canada Hydrofoil Boat Revenue by Country (2019-2024) & (US$ Million)
Table 62. US & Canada Hydrofoil Boat Revenue by Country (2025-2030) & (US$ Million)
Table 63. US & Canada Hydrofoil Boat Sales by Country (2019-2024) & (K Units)
Table 64. US & Canada Hydrofoil Boat Sales by Country (2025-2030) & (K Units)
Table 65. Europe Hydrofoil Boat Sales by Type (2019-2024) & (K Units)
Table 66. Europe Hydrofoil Boat Sales by Type (2025-2030) & (K Units)
Table 67. Europe Hydrofoil Boat Revenue by Type (2019-2024) & (US$ Million)
Table 68. Europe Hydrofoil Boat Revenue by Type (2025-2030) & (US$ Million)
Table 69. Europe Hydrofoil Boat Sales by Application (2019-2024) & (K Units)
Table 70. Europe Hydrofoil Boat Sales by Application (2025-2030) & (K Units)
Table 71. Europe Hydrofoil Boat Revenue by Application (2019-2024) & (US$ Million)
Table 72. Europe Hydrofoil Boat Revenue by Application (2025-2030) & (US$ Million)
Table 73. Europe Hydrofoil Boat Revenue Grow Rate (CAGR) by Country: 2019 VS 2023 VS 2030 (US$ Million)
Table 74. Europe Hydrofoil Boat Revenue by Country (2019-2024) & (US$ Million)
Table 75. Europe Hydrofoil Boat Revenue by Country (2025-2030) & (US$ Million)
Table 76. Europe Hydrofoil Boat Sales by Country (2019-2024) & (K Units)
Table 77. Europe Hydrofoil Boat Sales by Country (2025-2030) & (K Units)
Table 78. China Hydrofoil Boat Sales by Type (2019-2024) & (K Units)
Table 79. China Hydrofoil Boat Sales by Type (2025-2030) & (K Units)
Table 80. China Hydrofoil Boat Revenue by Type (2019-2024) & (US$ Million)
Table 81. China Hydrofoil Boat Revenue by Type (2025-2030) & (US$ Million)
Table 82. China Hydrofoil Boat Sales by Application (2019-2024) & (K Units)
Table 83. China Hydrofoil Boat Sales by Application (2025-2030) & (K Units)
Table 84. China Hydrofoil Boat Revenue by Application (2019-2024) & (US$ Million)
Table 85. China Hydrofoil Boat Revenue by Application (2025-2030) & (US$ Million)
Table 86. Asia Hydrofoil Boat Sales by Type (2019-2024) & (K Units)
Table 87. Asia Hydrofoil Boat Sales by Type (2025-2030) & (K Units)
Table 88. Asia Hydrofoil Boat Revenue by Type (2019-2024) & (US$ Million)
Table 89. Asia Hydrofoil Boat Revenue by Type (2025-2030) & (US$ Million)
Table 90. Asia Hydrofoil Boat Sales by Application (2019-2024) & (K Units)
Table 91. Asia Hydrofoil Boat Sales by Application (2025-2030) & (K Units)
Table 92. Asia Hydrofoil Boat Revenue by Application (2019-2024) & (US$ Million)
Table 93. Asia Hydrofoil Boat Revenue by Application (2025-2030) & (US$ Million)
Table 94. Asia Hydrofoil Boat Revenue Grow Rate (CAGR) by Country: 2019 VS 2023 VS 2030 (US$ Million)
Table 95. Asia Hydrofoil Boat Revenue by Region (2019-2024) & (US$ Million)
Table 96. Asia Hydrofoil Boat Revenue by Region (2025-2030) & (US$ Million)
Table 97. Asia Hydrofoil Boat Sales by Region (2019-2024) & (K Units)
Table 98. Asia Hydrofoil Boat Sales by Region (2025-2030) & (K Units)
Table 99. Middle East, Africa and Latin America Hydrofoil Boat Sales by Type (2019-2024) & (K Units)
Table 100. Middle East, Africa and Latin America Hydrofoil Boat Sales by Type (2025-2030) & (K Units)
Table 101. Middle East, Africa and Latin America Hydrofoil Boat Revenue by Type (2019-2024) & (US$ Million)
Table 102. Middle East, Africa and Latin America Hydrofoil Boat Revenue by Type (2025-2030) & (US$ Million)
Table 103. Middle East, Africa and Latin America Hydrofoil Boat Sales by Application (2019-2024) & (K Units)
Table 104. Middle East, Africa and Latin America Hydrofoil Boat Sales by Application (2025-2030) & (K Units)
Table 105. Middle East, Africa and Latin America Hydrofoil Boat Revenue by Application (2019-2024) & (US$ Million)
Table 106. Middle East, Africa and Latin America Hydrofoil Boat Revenue by Application (2025-2030) & (US$ Million)
Table 107. Middle East, Africa and Latin America Hydrofoil Boat Revenue Grow Rate (CAGR) by Country: 2019 VS 2023 VS 2030 (US$ Million)
Table 108. Middle East, Africa and Latin America Hydrofoil Boat Revenue by Country (2019-2024) & (US$ Million)
Table 109. Middle East, Africa and Latin America Hydrofoil Boat Revenue by Country (2025-2030) & (US$ Million)
Table 110. Middle East, Africa and Latin America Hydrofoil Boat Sales by Country (2019-2024) & (K Units)
Table 111. Middle East, Africa and Latin America Hydrofoil Boat Sales by Country (2025-2030) & (K Units)
Table 112. Candela Technology AB Company Information
Table 113. Candela Technology AB Description and Major Businesses
Table 114. Candela Technology AB Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 115. Candela Technology AB Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 116. Candela Technology AB Recent Development
Table 117. DNA Performance Sailing Company Information
Table 118. DNA Performance Sailing Description and Major Businesses
Table 119. DNA Performance Sailing Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 120. DNA Performance Sailing Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 121. DNA Performance Sailing Recent Development
Table 122. Epoch Boats Company Information
Table 123. Epoch Boats Description and Major Businesses
Table 124. Epoch Boats Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 125. Epoch Boats Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 126. Epoch Boats Recent Development
Table 127. Bering Marine Company Information
Table 128. Bering Marine Description and Major Businesses
Table 129. Bering Marine Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 130. Bering Marine Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 131. Bering Marine Recent Development
Table 132. MobyFly Company Information
Table 133. MobyFly Description and Major Businesses
Table 134. MobyFly Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 135. MobyFly Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 136. MobyFly Recent Development
Table 137. Navier Mobility Company Information
Table 138. Navier Mobility Description and Major Businesses
Table 139. Navier Mobility Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 140. Navier Mobility Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 141. Navier Mobility Recent Development
Table 142. SEAir Company Information
Table 143. SEAir Description and Major Businesses
Table 144. SEAir Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 145. SEAir Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 146. SEAir Recent Development
Table 147. FOILER Company Information
Table 148. FOILER Description and Major Businesses
Table 149. FOILER Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 150. FOILER Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 151. FOILER Recent Development
Table 152. Bladerider International Company Information
Table 153. Bladerider International Description and Major Businesses
Table 154. Bladerider International Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 155. Bladerider International Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 156. Bladerider International Recent Development
Table 157. SeaBubble Company Information
Table 158. SeaBubble Description and Major Businesses
Table 159. SeaBubble Hydrofoil Boat Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 160. SeaBubble Hydrofoil Boat Product Model Numbers, Pictures, Descriptions and Specifications
Table 161. SeaBubble Recent Development
Table 162. Key Raw Materials Lists
Table 163. Raw Materials Key Suppliers Lists
Table 164. Hydrofoil Boat Distributors List
Table 165. Hydrofoil Boat Customers List
Table 166. Hydrofoil Boat Market Trends
Table 167. Hydrofoil Boat Market Drivers
Table 168. Hydrofoil Boat Market Challenges
Table 169. Hydrofoil Boat Market Restraints
Table 170. Research Programs/Design for This Report
Table 171. Key Data Information from Secondary Sources
Table 172. Key Data Information from Primary Sources
List of Figures
Figure 1. Hydrofoil Boat Product Picture
Figure 2. Global Hydrofoil Boat Market Size Growth Rate by Type, 2019 VS 2023 VS 2030 (US$ Million)
Figure 3. Global Hydrofoil Boat Market Share by Type in 2023 & 2030
Figure 4. Fully Submerged Hydrofoil Boat Product Picture
Figure 5. Cut-off Hydrofoil Boat (Semi-Submerged Hydrofoil Boat) Product Picture
Figure 6. Global Hydrofoil Boat Market Size Growth Rate by Application, 2019 VS 2023 VS 2030 (US$ Million)
Figure 7. Global Hydrofoil Boat Market Share by Application in 2023 & 2030
Figure 8. Civil(Carry Passenger)
Figure 9. Military
Figure 10. Hydrofoil Boat Report Years Considered
Figure 11. Global Hydrofoil Boat Capacity, Production and Utilization (2019-2030) & (K Units)
Figure 12. Global Hydrofoil Boat Production Market Share by Region in Percentage: 2023 Versus 2030
Figure 13. Global Hydrofoil Boat Production Market Share by Region (2019-2030)
Figure 14. Hydrofoil Boat Production Growth Rate in North America (2019-2030) & (K Units)
Figure 15. Hydrofoil Boat Production Growth Rate in Europe (2019-2030) & (K Units)
Figure 16. Hydrofoil Boat Production Growth Rate in China (2019-2030) & (K Units)
Figure 17. Hydrofoil Boat Production Growth Rate in Japan (2019-2030) & (K Units)
Figure 18. Hydrofoil Boat Production Growth Rate in South Korea (2019-2030) & (K Units)
Figure 19. Hydrofoil Boat Production Growth Rate in India (2019-2030) & (K Units)
Figure 20. Global Hydrofoil Boat Revenue, (US$ Million), 2019 VS 2023 VS 2030
Figure 21. Global Hydrofoil Boat Revenue 2019-2030 (US$ Million)
Figure 22. Global Hydrofoil Boat Revenue (CAGR) by Region: 2019 VS 2023 VS 2030 (US$ Million)
Figure 23. Global Hydrofoil Boat Revenue Market Share by Region in Percentage: 2023 Versus 2030
Figure 24. Global Hydrofoil Boat Revenue Market Share by Region (2019-2030)
Figure 25. Global Hydrofoil Boat Sales 2019-2030 ((K Units)
Figure 26. Global Hydrofoil Boat Sales (CAGR) by Region: 2019 VS 2023 VS 2030 (K Units)
Figure 27. Global Hydrofoil Boat Sales Market Share by Region (2019-2030)
Figure 28. US & Canada Hydrofoil Boat Sales YoY (2019-2030) & (K Units)
Figure 29. US & Canada Hydrofoil Boat Revenue YoY (2019-2030) & (US$ Million)
Figure 30. Europe Hydrofoil Boat Sales YoY (2019-2030) & (K Units)
Figure 31. Europe Hydrofoil Boat Revenue YoY (2019-2030) & (US$ Million)
Figure 32. China Hydrofoil Boat Sales YoY (2019-2030) & (K Units)
Figure 33. China Hydrofoil Boat Revenue YoY (2019-2030) & (US$ Million)
Figure 34. Asia (excluding China) Hydrofoil Boat Sales YoY (2019-2030) & (K Units)
Figure 35. Asia (excluding China) Hydrofoil Boat Revenue YoY (2019-2030) & (US$ Million)
Figure 36. Middle East, Africa and Latin America Hydrofoil Boat Sales YoY (2019-2030) & (K Units)
Figure 37. Middle East, Africa and Latin America Hydrofoil Boat Revenue YoY (2019-2030) & (US$ Million)
Figure 38. The Hydrofoil Boat Market Share of Top 10 and Top 5 Largest Manufacturers Around the World in 2023
Figure 39. The Top 5 and 10 Largest Manufacturers of Hydrofoil Boat in the World: Market Share by Hydrofoil Boat Revenue in 2023
Figure 40. Global Hydrofoil Boat Market Share by Company Type (Tier 1, Tier 2, and Tier 3): 2019 VS 2023
Figure 41. Global Hydrofoil Boat Sales Market Share by Type (2019-2030)
Figure 42. Global Hydrofoil Boat Revenue Market Share by Type (2019-2030)
Figure 43. Global Hydrofoil Boat Sales Market Share by Application (2019-2030)
Figure 44. Global Hydrofoil Boat Revenue Market Share by Application (2019-2030)
Figure 45. US & Canada Hydrofoil Boat Sales Market Share by Type (2019-2030)
Figure 46. US & Canada Hydrofoil Boat Revenue Market Share by Type (2019-2030)
Figure 47. US & Canada Hydrofoil Boat Sales Market Share by Application (2019-2030)
Figure 48. US & Canada Hydrofoil Boat Revenue Market Share by Application (2019-2030)
Figure 49. US & Canada Hydrofoil Boat Revenue Share by Country (2019-2030)
Figure 50. US & Canada Hydrofoil Boat Sales Share by Country (2019-2030)
Figure 51. U.S. Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 52. Canada Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 53. Europe Hydrofoil Boat Sales Market Share by Type (2019-2030)
Figure 54. Europe Hydrofoil Boat Revenue Market Share by Type (2019-2030)
Figure 55. Europe Hydrofoil Boat Sales Market Share by Application (2019-2030)
Figure 56. Europe Hydrofoil Boat Revenue Market Share by Application (2019-2030)
Figure 57. Europe Hydrofoil Boat Revenue Share by Country (2019-2030)
Figure 58. Europe Hydrofoil Boat Sales Share by Country (2019-2030)
Figure 59. Germany Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 60. France Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 61. U.K. Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 62. Italy Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 63. Russia Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 64. China Hydrofoil Boat Sales Market Share by Type (2019-2030)
Figure 65. China Hydrofoil Boat Revenue Market Share by Type (2019-2030)
Figure 66. China Hydrofoil Boat Sales Market Share by Application (2019-2030)
Figure 67. China Hydrofoil Boat Revenue Market Share by Application (2019-2030)
Figure 68. Asia Hydrofoil Boat Sales Market Share by Type (2019-2030)
Figure 69. Asia Hydrofoil Boat Revenue Market Share by Type (2019-2030)
Figure 70. Asia Hydrofoil Boat Sales Market Share by Application (2019-2030)
Figure 71. Asia Hydrofoil Boat Revenue Market Share by Application (2019-2030)
Figure 72. Asia Hydrofoil Boat Revenue Share by Region (2019-2030)
Figure 73. Asia Hydrofoil Boat Sales Share by Region (2019-2030)
Figure 74. Japan Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 75. South Korea Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 76. China Taiwan Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 77. Southeast Asia Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 78. India Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 79. Middle East, Africa and Latin America Hydrofoil Boat Sales Market Share by Type (2019-2030)
Figure 80. Middle East, Africa and Latin America Hydrofoil Boat Revenue Market Share by Type (2019-2030)
Figure 81. Middle East, Africa and Latin America Hydrofoil Boat Sales Market Share by Application (2019-2030)
Figure 82. Middle East, Africa and Latin America Hydrofoil Boat Revenue Market Share by Application (2019-2030)
Figure 83. Middle East, Africa and Latin America Hydrofoil Boat Revenue Share by Country (2019-2030)
Figure 84. Middle East, Africa and Latin America Hydrofoil Boat Sales Share by Country (2019-2030)
Figure 85. Brazil Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 86. Mexico Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 87. Turkey Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 88. Israel Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 89. GCC Countries Hydrofoil Boat Revenue (2019-2030) & (US$ Million)
Figure 90. Hydrofoil Boat Value Chain
Figure 91. Hydrofoil Boat Production Process
Figure 92. Channels of Distribution
Figure 93. Distributors Profiles
Figure 94. Bottom-up and Top-down Approaches for This Report
Figure 95. Data Triangulation
Figure 96. Key Executives Interviewed