| Year | Total | vs prev |
|---|---|---|
| 2026 YTD | 274 | −28.3% |
| 2025 | 933 | −3.4% |
| 2024 | 966 | −26.7% |
| 2023 | 1,318 | +52.4% |
| 2022 | 865 | −70.7% |
| 2021 | 2,950 | −59.0% |
| 2020 | 7,194 | −31.7% |
| 2019 | 10,531 | −21.8% |
| 2018 | 13,470 | −8.2% |
| 2017 | 14,672 | +108.8% |
| 2016 | 7,028 | +62.5% |
| 2015 | 4,326 | −45.1% |
| 2014 | 7,878 | −44.8% |
| 2013 | 14,261 | +24.6% |
| 2012 | 11,442 | +76.1% |
| 2011 | 6,499 | −37.9% |
| 2010 | 10,457 | +2.1% |
| 2009 | 10,242 | −38.9% |
| 2008 | 16,750 | −5.1% |
| 2007 | 17,643 | +30.3% |
| 2006 | 13,536 | +84.6% |
| 2005 | 7,331 | +69.5% |
| 2004 | 4,324 | +15.3% |
| 2003 | 3,751 | −37.2% |
| 2002 | 5,973 | −6.5% |
| 2001 | 6,386 | −21.9% |
| 2000 | 8,173 | +0.1% |
| 1999 | 8,163 | −3.1% |
| 1998 | 8,425 | +4.9% |
| 1997 | 8,034 | — |