| Year | Rank | Number |
| 2009 | 16286 | 6 |
| 2008 | 14680 | 7 |
| 2002 | 13027 | 7 |
| 1993 | 10145 | 8 |
| 1991 | 12416 | 6 |
| 1989 | 13603 | 5 |
| 1987 | 12381 | 5 |
| 1986 | 8157 | 8 |
| 1984 | 6107 | 11 |
| 1983 | 7706 | 8 |
| 1980 | 9759 | 6 |
| Year | Rank | Number |
| 2009 | 16286 | 6 |
| 2008 | 14680 | 7 |
| 2002 | 13027 | 7 |
| 1993 | 10145 | 8 |
| 1991 | 12416 | 6 |
| 1989 | 13603 | 5 |
| 1987 | 12381 | 5 |
| 1986 | 8157 | 8 |
| 1984 | 6107 | 11 |
| 1983 | 7706 | 8 |
| 1980 | 9759 | 6 |