| Year | Rank | Number |
| 2009 | 17753 | 5 |
| 2007 | 15883 | 6 |
| 2006 | 17663 | 5 |
| 2004 | 9378 | 11 |
| 2003 | 16267 | 5 |
| 2002 | 13950 | 6 |
| 2001 | 10279 | 9 |
| 2000 | 10060 | 9 |
| 1999 | 8919 | 10 |
| 1998 | 8110 | 11 |
| 1997 | 12397 | 6 |
| 1996 | 7231 | 12 |
| 1995 | 8912 | 9 |
| 1994 | 12100 | 6 |
| 1993 | 10827 | 7 |
| 1989 | 12773 | 5 |
| Year | Rank | Number |
| 2009 | 17753 | 5 |
| 2007 | 15883 | 6 |
| 2006 | 17663 | 5 |
| 2004 | 9378 | 11 |
| 2003 | 16267 | 5 |
| 2002 | 13950 | 6 |
| 2001 | 10279 | 9 |
| 2000 | 10060 | 9 |
| 1999 | 8919 | 10 |
| 1998 | 8110 | 11 |
| 1997 | 12397 | 6 |
| 1996 | 7231 | 12 |
| 1995 | 8912 | 9 |
| 1994 | 12100 | 6 |
| 1993 | 10827 | 7 |
| 1989 | 12773 | 5 |