| Year | Rank | Number |
| 2011 | 10796 | 6 |
| 2010 | 8810 | 8 |
| 2009 | 8243 | 9 |
| 2008 | 12584 | 5 |
| 2007 | 9807 | 7 |
| 2006 | 8012 | 9 |
| 2005 | 11525 | 5 |
| 2003 | 7255 | 9 |
| 2002 | 10731 | 5 |
| 2001 | 8362 | 7 |
| 2000 | 10416 | 5 |
| 1998 | 8507 | 6 |
| 1993 | 6242 | 8 |
| 1992 | 6689 | 7 |
| Year | Rank | Number |
| 2011 | 10796 | 6 |
| 2010 | 8810 | 8 |
| 2009 | 8243 | 9 |
| 2008 | 12584 | 5 |
| 2007 | 9807 | 7 |
| 2006 | 8012 | 9 |
| 2005 | 11525 | 5 |
| 2003 | 7255 | 9 |
| 2002 | 10731 | 5 |
| 2001 | 8362 | 7 |
| 2000 | 10416 | 5 |
| 1998 | 8507 | 6 |
| 1993 | 6242 | 8 |
| 1992 | 6689 | 7 |