| Year | Rank | Number |
| 2011 | 5210 | 26 |
| 2010 | 6005 | 22 |
| 2009 | 5213 | 27 |
| 2008 | 5799 | 24 |
| 2007 | 8192 | 15 |
| 2006 | 6638 | 19 |
| 2005 | 5861 | 21 |
| 2004 | 7170 | 16 |
| 2003 | 8666 | 12 |
| 2002 | 9697 | 10 |
| 2001 | 10350 | 9 |
| 1998 | 11485 | 7 |
| 1997 | 14408 | 5 |
| Year | Rank | Number |
| 2011 | 5210 | 26 |
| 2010 | 6005 | 22 |
| 2009 | 5213 | 27 |
| 2008 | 5799 | 24 |
| 2007 | 8192 | 15 |
| 2006 | 6638 | 19 |
| 2005 | 5861 | 21 |
| 2004 | 7170 | 16 |
| 2003 | 8666 | 12 |
| 2002 | 9697 | 10 |
| 2001 | 10350 | 9 |
| 1998 | 11485 | 7 |
| 1997 | 14408 | 5 |