| Year | |
|---|---|
| 1993 | 0 |
| 1994 | 308 |
| 1995 | 331 |
| 1996 | 374 |
| 1997 | 422 |
| 1998 | 452 |
| 1999 | 541 |
| 2000 | 552 |
| 2001 | 533 |
| 2002 | 445 |
| 2003 | 415 |
| 2004 | 368 |
| 2005 | 326 |
| 2006 | 306 |
| 2007 | 352 |
| 2008 | 389 |
| 2009 | 404 |
| 2010 | 412 |
| 2011 | 354 |
| 2012 | 338 |
| 2013 | 360 |
| 2014 | 360 |
| 2015 | 367 |
| 2016 | 376 |
| 2017 | 393 |
| 2018 | 396 |
| 2019 | 407 |
| 2020 | 418 |
| 2021 | 276 |
| 2022 | 310 |
| 2023 | 299 |