| Year | OnRoad | OffRoad | Total | |
| 1998 | $ 3,612 | $ 3,612 | ||
| 1999 | no event | |||
| 2000 | $ 7,100 | $ 7,100 | ||
| 2001 | $ 7,500 | $ 7,500 | ||
| 2002 | $ 16,681 | $ 16,681 | ||
| 2003 | no event | |||
| 2004 | $ 26,283 | $ 26,283 | ||
| 2005 | $ 34,481 | $ 34,481 | ||
| 2006 | $ 35,716 | $ 35,716 | ||
| 2007 | $ 51,434 | $ 51,434 | ||
| 2008 | $ 60,388 | $ 60,388 | ||
| 2009 | $ 78,899 | $ 78,899 | ||
| 2010 | $ 130,516 | $ 130,516 | ||
| 2011 | $ 110,909 | $ 110,909 | ||
| 2012 | $ 80,924 | $ 13,776 | $ 94,700 | |
| 2013 | $ 128,586 | $ 17,688 | $ 146,274 | |
| 2014 | $ 155,701 | $ 41,008 | $ 196,709 | |
| 2015 | $ 135,744 | $ 24,586 | $ 160,330 | |
| 2016 | $ 132,638 | $ 20,985 | $ 153,623 | |
| 2017 | $ 118,094 | $ 47,205 | $ 165,299 | |
| 2018 | $ 171,919 | $ 50,143 | $ 222,062 | |
| 2019 | $ 159,670 | $ 52,000 | $ 211,670 | |
| 2020 | $ 124,035 | $ 33,544 | $ 157,569 | |
| 2021 | $ 177,606 | |||
| Totals | $ 1,944,539 | $ 300,948 | $ 2,245,488 |
