| Year | Rank | Number |
| 2011 | 4573 | 31 |
| 2010 | 7012 | 18 |
| 2009 | 4357 | 34 |
| 2008 | 4787 | 31 |
| 2007 | 4836 | 30 |
| 2006 | 6662 | 19 |
| 2005 | 5314 | 24 |
| 2004 | 5259 | 24 |
| 2003 | 6697 | 17 |
| 2002 | 6502 | 17 |
| 2001 | 8976 | 11 |
| 2000 | 12284 | 7 |
| 1999 | 8430 | 11 |
| 1998 | 9573 | 9 |
| 1997 | 7004 | 13 |
| 1995 | 14275 | 5 |
| Year | Rank | Number |
| 2011 | 4573 | 31 |
| 2010 | 7012 | 18 |
| 2009 | 4357 | 34 |
| 2008 | 4787 | 31 |
| 2007 | 4836 | 30 |
| 2006 | 6662 | 19 |
| 2005 | 5314 | 24 |
| 2004 | 5259 | 24 |
| 2003 | 6697 | 17 |
| 2002 | 6502 | 17 |
| 2001 | 8976 | 11 |
| 2000 | 12284 | 7 |
| 1999 | 8430 | 11 |
| 1998 | 9573 | 9 |
| 1997 | 7004 | 13 |
| 1995 | 14275 | 5 |