| Year | Rank | Number |
| 2011 | 5810 | 23 |
| 2010 | 5030 | 28 |
| 2009 | 5428 | 26 |
| 2008 | 6243 | 22 |
| 2007 | 5801 | 24 |
| 2006 | 5826 | 23 |
| 2005 | 5692 | 22 |
| 2004 | 6104 | 20 |
| 2003 | 10930 | 9 |
| 2002 | 6895 | 16 |
| 2001 | 9789 | 10 |
| 2000 | 9590 | 10 |
| 1999 | 9980 | 9 |
| 1998 | 6929 | 14 |
| 1997 | 8098 | 11 |
| 1996 | 11285 | 7 |
| 1995 | 14773 | 5 |
| 1993 | 11260 | 7 |
| Year | Rank | Number |
| 2011 | 5810 | 23 |
| 2010 | 5030 | 28 |
| 2009 | 5428 | 26 |
| 2008 | 6243 | 22 |
| 2007 | 5801 | 24 |
| 2006 | 5826 | 23 |
| 2005 | 5692 | 22 |
| 2004 | 6104 | 20 |
| 2003 | 10930 | 9 |
| 2002 | 6895 | 16 |
| 2001 | 9789 | 10 |
| 2000 | 9590 | 10 |
| 1999 | 9980 | 9 |
| 1998 | 6929 | 14 |
| 1997 | 8098 | 11 |
| 1996 | 11285 | 7 |
| 1995 | 14773 | 5 |
| 1993 | 11260 | 7 |