| Year | Rank | Number |
| 1997 | 5777 | 10 |
| 1995 | 7251 | 7 |
| 1993 | 9204 | 5 |
| 1992 | 8857 | 5 |
| 1991 | 6131 | 8 |
| 1989 | 8324 | 5 |
| 1988 | 7650 | 5 |
| 1987 | 7335 | 5 |
| 1986 | 5511 | 7 |
| 1983 | 6589 | 5 |
| 1982 | 5887 | 6 |
| 1981 | 5735 | 6 |
| Year | Rank | Number |
| 1997 | 5777 | 10 |
| 1995 | 7251 | 7 |
| 1993 | 9204 | 5 |
| 1992 | 8857 | 5 |
| 1991 | 6131 | 8 |
| 1989 | 8324 | 5 |
| 1988 | 7650 | 5 |
| 1987 | 7335 | 5 |
| 1986 | 5511 | 7 |
| 1983 | 6589 | 5 |
| 1982 | 5887 | 6 |
| 1981 | 5735 | 6 |