| STOCK HYDROPLANE DRIVERS | |||||
| 2006 | 2007 | 2008 | 2009 | 2010 | |
| ASH | 88 | 92 | 100 | 102 | 87 |
| BSH | 39 | 32 | 34 | 31 | 27 |
| CSH | 120 | 130 | 133 | 135 | 117 |
| DSH | 44 | 50 | 44 | 43 | 49 |
| 25SSH | 42 | 39 | 42 | 32 | 28 |
| 20SSH | 98 | 98 | 98 | 107 | 87 |
| AVERAGE NUMBER OF RACES PER DRIVER | |||||
| |
2006 | 2007 |
2008 | 2009 | 2010 |
| ASH | 7.2 | 6.9 | 6.3 | 6 | 7.3 |
| BSH | 4.3 | 3.4 | 5.1 | 5.7 | 3.9 |
| CSH | 6.3 | 6.3 | 6.6 | 6.4 | 7.1 |
| DSH | 6.8 | 6.6 | 7.7 | 6.0 | 5.0 |
| 25SSH | 5.4 | 5.1 | 5.1 | 4.3 | 4.6 |
| 20SSH | 6.7 | 6.2 | 6.4 | 5.8 | 6.6 |
| MODIFIED HYDROPLANE DRIVERS | ||||||
| 2006 | 2007 | 2008 | 2009 | 2010 | ||
| Formula AH | 200CCMH | 22 | 29 | 27 | 21 | 27 |
| AMH | 250CCMH | 17 | 15 | 17 | 24 | 28 |
| BMH | 350CCMH | 42 | 36 | 32 | 33 | 29 |
| 25MH | 400CCMH | 29 | 19 | 14 | 15 | 10 |
| CMH | 500CCMH | 65 | 55 | 57 | 56 | 58 |
| DMH | 750CCMH | 63 | 65 | 52 | 50 | 43 |
| FEH | 850CCMH | 46 | 53 | 48 | 40 | 55 |
| AVERAGE NUMBER OF RACES PER DRIVER | ||||||
| 2006 | 2007 | 2008 | 2009 | 2010 | ||
| Formula AH | 200CCMH | 3.1 | 4.2 | 3.4 | 2.9 | 4.5 |
| AMH | 250CCMH | 3.9 | 3.3 | 4.1 | 4.8 | 5.8 |
| BMH | 350CCMH | 5.0 | 5.6 | 4.9 | 5.3 | 5.2 |
| 25MH | 400CCMH | 4.1 | 4.7 | 5.0 | 5.9 | 6.3 |
| CMH | 500CCMH | 3.9 | 4.5 | 4.4 | 4.0 | 4.4 |
| DMH | 750CCMH | 5.2 | 5.1 | 5.7 | 5.5 | 5.8 |
| FEH | 850CCMH | 4.5 | 4.0 | 4.0 | 3.5 | 2.9 |
