| Year | Rank | Number |
| 2006 | 14525 | 7 |
| 2005 | 18146 | 5 |
| 2002 | 17137 | 5 |
| 2001 | 16940 | 5 |
| 2000 | 12617 | 7 |
| 1989 | 11745 | 6 |
| 1985 | 11745 | 5 |
| 1979 | 9677 | 6 |
| 1969 | 8181 | 5 |
| 1968 | 7718 | 5 |
| 1967 | 7435 | 5 |
| 1964 | 5809 | 7 |
| 1959 | 6857 | 5 |
| 1958 | 5846 | 6 |
| 1956 | 5134 | 7 |
| 1955 | 4608 | 8 |
| 1954 | 6282 | 5 |
| 1953 | 5434 | 6 |
| 1951 | 4245 | 8 |
| 1947 | 4607 | 7 |
| 1946 | 3560 | 9 |
| 1945 | 4997 | 5 |
| 1944 | 4361 | 6 |
| 1943 | 3392 | 9 |
| 1942 | 3978 | 7 |
| 1941 | 2617 | 12 |
| 1940 | 3400 | 8 |
| 1939 | 2855 | 10 |
| 1938 | 3717 | 7 |