| Year | Rank | +/- | Quantity | |
|---|---|---|---|---|
| 2010 | #34 | -6 | 10,357 | |
| 2009 | #28 | 0 | 11,487 | |
| 2008 | #28 | -7 | 12,669 | |
| 2007 | #21 | -3 | 14,060 | |
| 2006 | #18 | -2 | 15,510 | |
| 2005 | #16 | 0 | 16,971 | |
| 2004 | #16 | -1 | 17,426 | |
| 2003 | #15 | -1 | 18,165 | |
| 2002 | #14 | -1 | 18,260 | |
| 2001 | #13 | -3 | 19,266 | |
| 2000 | #10 | 0 | 21,497 | |
| 1999 | #10 | -2 | 22,659 | |
| 1998 | #8 | +2 | 23,708 | |
| 1997 | #10 | -3 | 24,878 | |
| 1996 | #7 | 0 | 26,953 | |
| 1995 | #7 | -2 | 29,148 | |
| 1994 | #5 | 0 | 30,477 | |
| 1993 | #5 | +3 | 29,798 | |
| 1992 | #8 | +8 | 28,792 | |
| 1991 | #16 | +5 | 25,203 | |
| 1990 | #21 | +9 | 20,630 | |
| 1989 | #30 | +3 | 15,586 | |
| 1988 | #33 | +6 | 13,338 | |
| 1987 | #39 | +1 | 11,529 | |
| 1986 | #40 | +3 | 10,905 | |
| 1985 | #43 | +4 | 10,205 | |
| 1984 | #47 | +10 | 8,697 | |
| 1983 | #57 | +9 | 5,813 | |
| 1982 | #66 | +30 | 4,569 | |
| 1981 | #96 | +18 | 3,118 | |
| 1980 | #114 | +17 | 2,624 | |
| 1979 | #131 | +19 | 2,043 | |
| 1978 | #150 | +14 | 1,752 | |
| 1977 | #164 | +15 | 1,458 | |
| 1976 | #179 | +26 | 1,261 | |
| 1975 | #205 | +22 | 1,061 | |
| 1974 | #227 | +32 | 922 | |
| 1973 | #259 | -9 | 749 | |
| 1972 | #250 | +36 | 833 | |
| 1971 | #286 | -3 | 723 | |
| 1970 | #283 | +74 | 747 | |
| 1969 | #357 | +15 | 493 | |
| 1968 | #372 | -6 | 437 | |
| 1967 | #366 | +52 | 420 | |
| 1966 | #418 | +32 | 332 | |
| 1965 | #450 | +4 | 298 | |
| 1964 | #454 | +15 | 310 | |
| 1963 | #469 | +49 | 283 | |
| 1962 | #518 | +41 | 234 | |
| 1961 | #559 | +26 | 198 | |
| 1960 | #585 | +54 | 179 | |
| 1959 | #639 | +2 | 147 | |
| 1958 | #641 | +4 | 144 | |
| 1957 | #645 | +14 | 142 | |
| 1956 | #659 | +18 | 133 | |
| 1955 | #677 | -10 | 117 | |
| 1954 | #667 | +59 | 118 | |
| 1953 | #726 | +48 | 98 | |
| 1952 | #774 | +53 | 83 | |
| 1951 | #827 | -50 | 73 | |
| 1950 | #777 | +53 | 78 | |
| 1949 | #830 | +1 | 68 | |
| 1948 | #831 | +3 | 68 | |
| 1947 | #834 | +100 | 70 | |
| 1946 | #934 | 52 | ||
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| 1880 | #802 | 7 |