| Year | Rank | Number |
| 2003 | 10628 | 9 |
| 2000 | 13550 | 6 |
| 1998 | 9444 | 9 |
| 1997 | 11112 | 7 |
| 1996 | 8967 | 9 |
| 1994 | 8270 | 10 |
| 1993 | 7121 | 12 |
| 1991 | 9532 | 8 |
| 1990 | 13438 | 5 |
| 1989 | 11140 | 6 |
| 1988 | 10647 | 6 |
| 1983 | 10611 | 5 |
| 1979 | 10516 | 5 |
| 1975 | 9363 | 5 |
| Year | Rank | Number |
| 2003 | 10628 | 9 |
| 2000 | 13550 | 6 |
| 1998 | 9444 | 9 |
| 1997 | 11112 | 7 |
| 1996 | 8967 | 9 |
| 1994 | 8270 | 10 |
| 1993 | 7121 | 12 |
| 1991 | 9532 | 8 |
| 1990 | 13438 | 5 |
| 1989 | 11140 | 6 |
| 1988 | 10647 | 6 |
| 1983 | 10611 | 5 |
| 1979 | 10516 | 5 |
| 1975 | 9363 | 5 |