| Year | Rank | Number |
| 2010 | 14983 | 6 |
| 2009 | 12386 | 8 |
| 2008 | 9481 | 12 |
| 2007 | 17708 | 5 |
| 2006 | 11430 | 9 |
| 2005 | 13051 | 7 |
| 2004 | 11656 | 8 |
| 2003 | 10453 | 9 |
| 2002 | 7450 | 14 |
| 2001 | 8765 | 11 |
| 2000 | 11844 | 7 |
| 1999 | 8821 | 10 |
| 1998 | 8605 | 10 |
| 1997 | 8353 | 10 |
| 1994 | 11814 | 6 |
| Year | Rank | Number |
| 2010 | 14983 | 6 |
| 2009 | 12386 | 8 |
| 2008 | 9481 | 12 |
| 2007 | 17708 | 5 |
| 2006 | 11430 | 9 |
| 2005 | 13051 | 7 |
| 2004 | 11656 | 8 |
| 2003 | 10453 | 9 |
| 2002 | 7450 | 14 |
| 2001 | 8765 | 11 |
| 2000 | 11844 | 7 |
| 1999 | 8821 | 10 |
| 1998 | 8605 | 10 |
| 1997 | 8353 | 10 |
| 1994 | 11814 | 6 |