| Year | Rank | Number |
| 2010 | 10319 | 7 |
| 2008 | 10580 | 7 |
| 2006 | 6728 | 12 |
| 2003 | 8321 | 8 |
| 2001 | 8878 | 7 |
| 2000 | 11498 | 5 |
| 1999 | 6890 | 9 |
| 1994 | 9709 | 5 |
| 1992 | 7130 | 7 |
| 1991 | 9083 | 5 |
| Year | Rank | Number |
| 2010 | 10319 | 7 |
| 2008 | 10580 | 7 |
| 2006 | 6728 | 12 |
| 2003 | 8321 | 8 |
| 2001 | 8878 | 7 |
| 2000 | 11498 | 5 |
| 1999 | 6890 | 9 |
| 1994 | 9709 | 5 |
| 1992 | 7130 | 7 |
| 1991 | 9083 | 5 |