| Year | Rank | Number |
| 1996 | 12338 | 6 |
| 1983 | 8301 | 7 |
| 1981 | 6966 | 9 |
| 1979 | 10676 | 5 |
| 1976 | 7544 | 7 |
| 1972 | 5614 | 9 |
| 1971 | 5668 | 9 |
| 1969 | 5603 | 8 |
| 1967 | 4396 | 10 |
| 1964 | 7078 | 5 |
| 1963 | 4347 | 10 |
| 1962 | 5001 | 8 |
| 1961 | 5017 | 8 |
| 1960 | 5346 | 7 |
| 1959 | 4750 | 8 |
| 1957 | 6385 | 5 |
| 1955 | 4880 | 7 |
| 1953 | 5954 | 5 |
| 1950 | 4453 | 7 |
| 1949 | 5503 | 5 |
| 1947 | 5579 | 5 |
| 1946 | 3769 | 8 |