| Year | Rank | Number |
| 2010 | 13431 | 7 |
| 2009 | 10591 | 10 |
| 2008 | 13814 | 7 |
| 2006 | 8234 | 14 |
| 2005 | 14514 | 6 |
| 2004 | 11633 | 8 |
| 2003 | 11327 | 8 |
| 2002 | 11117 | 8 |
| 2000 | 11813 | 7 |
| 1999 | 12705 | 6 |
| 1996 | 9587 | 8 |
| 1995 | 13416 | 5 |
| 1993 | 9558 | 8 |
| 1992 | 13331 | 5 |
| 1979 | 10214 | 5 |
| Year | Rank | Number |
| 2010 | 13431 | 7 |
| 2009 | 10591 | 10 |
| 2008 | 13814 | 7 |
| 2006 | 8234 | 14 |
| 2005 | 14514 | 6 |
| 2004 | 11633 | 8 |
| 2003 | 11327 | 8 |
| 2002 | 11117 | 8 |
| 2000 | 11813 | 7 |
| 1999 | 12705 | 6 |
| 1996 | 9587 | 8 |
| 1995 | 13416 | 5 |
| 1993 | 9558 | 8 |
| 1992 | 13331 | 5 |
| 1979 | 10214 | 5 |