| Year | Rank | Number |
| 2011 | 4211 | 23 |
| 2010 | 5261 | 17 |
| 2009 | 4008 | 25 |
| 2008 | 4144 | 24 |
| 2007 | 3187 | 35 |
| 2006 | 4363 | 21 |
| 2005 | 5047 | 16 |
| 2004 | 3540 | 26 |
| 2003 | 3626 | 24 |
| 2002 | 4718 | 16 |
| 2001 | 6971 | 9 |
| 2000 | 4595 | 16 |
| 1999 | 10046 | 5 |
| 1998 | 5864 | 10 |
| 1997 | 7340 | 7 |
| 1996 | 6021 | 9 |
| 1993 | 7707 | 6 |
| Year | Rank | Number |
| 2011 | 4211 | 23 |
| 2010 | 5261 | 17 |
| 2009 | 4008 | 25 |
| 2008 | 4144 | 24 |
| 2007 | 3187 | 35 |
| 2006 | 4363 | 21 |
| 2005 | 5047 | 16 |
| 2004 | 3540 | 26 |
| 2003 | 3626 | 24 |
| 2002 | 4718 | 16 |
| 2001 | 6971 | 9 |
| 2000 | 4595 | 16 |
| 1999 | 10046 | 5 |
| 1998 | 5864 | 10 |
| 1997 | 7340 | 7 |
| 1996 | 6021 | 9 |
| 1993 | 7707 | 6 |