| Year | Rank | Number |
| 2005 | 15565 | 6 |
| 2003 | 9406 | 11 |
| 2002 | 16962 | 5 |
| 2001 | 11572 | 8 |
| 2000 | 12545 | 7 |
| 1999 | 8003 | 12 |
| 1998 | 11845 | 7 |
| 1995 | 14720 | 5 |
| 1994 | 11214 | 7 |
| 1993 | 9162 | 9 |
| 1992 | 9162 | 9 |
| 1990 | 12212 | 6 |
| 1989 | 7778 | 10 |
| 1988 | 9843 | 7 |
| 1987 | 12332 | 5 |
| 1983 | 11178 | 5 |
| 1982 | 9858 | 6 |
| 1978 | 10637 | 5 |
| 1962 | 5577 | 7 |
| 1960 | 4976 | 8 |
| 1959 | 4828 | 8 |
| 1958 | 4354 | 9 |
| 1957 | 5153 | 7 |
| 1899 | 1729 | 5 |