| Year | Rank | Number |
| 2010 | 15620 | 6 |
| 2009 | 15826 | 6 |
| 2008 | 14333 | 7 |
| 2007 | 18603 | 5 |
| 2005 | 13503 | 7 |
| 2003 | 11700 | 8 |
| 2002 | 14228 | 6 |
| 2001 | 11375 | 8 |
| 2000 | 10188 | 9 |
| 1999 | 15265 | 5 |
| 1998 | 13017 | 6 |
| 1997 | 8569 | 10 |
| 1994 | 9886 | 8 |
| 1993 | 12334 | 6 |
| Year | Rank | Number |
| 2010 | 15620 | 6 |
| 2009 | 15826 | 6 |
| 2008 | 14333 | 7 |
| 2007 | 18603 | 5 |
| 2005 | 13503 | 7 |
| 2003 | 11700 | 8 |
| 2002 | 14228 | 6 |
| 2001 | 11375 | 8 |
| 2000 | 10188 | 9 |
| 1999 | 15265 | 5 |
| 1998 | 13017 | 6 |
| 1997 | 8569 | 10 |
| 1994 | 9886 | 8 |
| 1993 | 12334 | 6 |