| Year | Rank | +/- | Quantity | |
|---|---|---|---|---|
| 2010 | #68 | -2 | 3,849 | |
| 2009 | #66 | -9 | 4,209 | |
| 2008 | #57 | -3 | 4,801 | |
| 2007 | #54 | +4 | 5,095 | |
| 2006 | #58 | +5 | 4,999 | |
| 2005 | #63 | -2 | 4,747 | |
| 2004 | #61 | +3 | 4,839 | |
| 2003 | #64 | -1 | 4,823 | |
| 2002 | #63 | -2 | 4,787 | |
| 2001 | #61 | -3 | 4,878 | |
| 2000 | #58 | -7 | 5,240 | |
| 1999 | #51 | +2 | 5,453 | |
| 1998 | #53 | -4 | 5,719 | |
| 1997 | #49 | -8 | 6,179 | |
| 1996 | #41 | -4 | 7,175 | |
| 1995 | #37 | -5 | 7,741 | |
| 1994 | #32 | +7 | 8,746 | |
| 1993 | #39 | -4 | 7,965 | |
| 1992 | #35 | -1 | 8,895 | |
| 1991 | #34 | -3 | 9,801 | |
| 1990 | #31 | -3 | 10,191 | |
| 1989 | #28 | -3 | 11,040 | |
| 1988 | #25 | -4 | 11,941 | |
| 1987 | #21 | -3 | 13,027 | |
| 1986 | #18 | +1 | 14,412 | |
| 1985 | #19 | +3 | 14,916 | |
| 1984 | #22 | -7 | 14,438 | |
| 1983 | #15 | -1 | 15,372 | |
| 1982 | #14 | -1 | 16,092 | |
| 1981 | #13 | -2 | 16,691 | |
| 1980 | #11 | +1 | 18,491 | |
| 1979 | #12 | +1 | 17,641 | |
| 1978 | #13 | -5 | 16,869 | |
| 1977 | #8 | -1 | 18,286 | |
| 1976 | #7 | 0 | 18,963 | |
| 1975 | #7 | -1 | 20,263 | |
| 1974 | #6 | -2 | 22,421 | |
| 1973 | #4 | 0 | 23,530 | |
| 1972 | #4 | 0 | 26,293 | |
| 1971 | #4 | -1 | 30,688 | |
| 1970 | #3 | +1 | 34,131 | |
| 1969 | #4 | -1 | 33,075 | |
| 1968 | #3 | -1 | 31,908 | |
| 1967 | #2 | 0 | 33,099 | |
| 1966 | #2 | +2 | 32,226 | |
| 1965 | #4 | +2 | 28,831 | |
| 1964 | #6 | +5 | 24,125 | |
| 1963 | #11 | +5 | 21,234 | |
| 1962 | #16 | +6 | 20,358 | |
| 1961 | #22 | +4 | 17,349 | |
| 1960 | #26 | +7 | 16,861 | |
| 1959 | #33 | +6 | 12,781 | |
| 1958 | #39 | +3 | 10,715 | |
| 1957 | #42 | +31 | 9,449 | |
| 1956 | #73 | +38 | 6,731 | |
| 1955 | #111 | +55 | 3,860 | |
| 1954 | #166 | +43 | 2,096 | |
| 1953 | #209 | +45 | 1,426 | |
| 1952 | #254 | +112 | 965 | |
| 1951 | #366 | +17 | 488 | |
| 1950 | #383 | +31 | 444 | |
| 1949 | #414 | +35 | 363 | |
| 1948 | #449 | +74 | 314 | |
| 1947 | #523 | +186 | 254 | |
| 1946 | #709 | 130 | ||
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