| Year | Total | vs prev |
|---|---|---|
| 2026 YTD | 492 | +122.6% |
| 2025 | 724 | −7.5% |
| 2024 | 783 | +40.3% |
| 2023 | 558 | +2.0% |
| 2022 | 547 | +27.8% |
| 2021 | 428 | −0.7% |
| 2020 | 431 | −14.5% |
| 2019 | 504 | −1.4% |
| 2018 | 511 | +18.6% |
| 2017 | 431 | +2.1% |
| 2016 | 422 | +11.9% |
| 2015 | 377 | +3.0% |
| 2014 | 366 | +32.6% |
| 2013 | 276 | +20.0% |
| 2012 | 230 | +14.4% |
| 2011 | 201 | −33.2% |
| 2010 | 301 | +46.1% |
| 2009 | 206 | −42.5% |
| 2008 | 358 | −31.4% |
| 2007 | 522 | +34.2% |
| 2006 | 389 | −17.2% |
| 2005 | 470 | +23.7% |
| 2004 | 380 | −8.9% |
| 2003 | 417 | +14.6% |
| 2002 | 364 | −9.7% |
| 2001 | 403 | +60.6% |
| 2000 | 251 | −14.6% |
| 1999 | 294 | −23.0% |
| 1998 | 382 | +76.9% |
| 1997 | 216 | −23.9% |
| 1996 | 284 | +17.8% |
| 1995 | 241 | +52.5% |
| 1994 | 158 | +135.8% |
| 1993 | 67 | +6.3% |
| 1992 | 63 | +1.6% |
| 1991 | 62 | — |