| Year | Rank | +/- | Quantity | |
|---|---|---|---|---|
| 2010 | #99 | -2 | 2,993 | |
| 2009 | #97 | -8 | 3,399 | |
| 2008 | #89 | 0 | 3,634 | |
| 2007 | #89 | -12 | 3,783 | |
| 2006 | #77 | -17 | 4,261 | |
| 2005 | #60 | -9 | 4,902 | |
| 2004 | #51 | -4 | 5,433 | |
| 2003 | #47 | +3 | 5,754 | |
| 2002 | #50 | +21 | 5,466 | |
| 2001 | #71 | -2 | 4,271 | |
| 2000 | #69 | -2 | 4,607 | |
| 1999 | #67 | -4 | 4,715 | |
| 1998 | #63 | +1 | 4,975 | |
| 1997 | #64 | +1 | 5,030 | |
| 1996 | #65 | -7 | 5,341 | |
| 1995 | #58 | +5 | 5,732 | |
| 1994 | #63 | -3 | 5,209 | |
| 1993 | #60 | +4 | 5,612 | |
| 1992 | #64 | +12 | 5,306 | |
| 1991 | #76 | +3 | 4,515 | |
| 1990 | #79 | +45 | 4,111 | |
| 1989 | #124 | +27 | 2,391 | |
| 1988 | #151 | +20 | 1,859 | |
| 1987 | #171 | +109 | 1,637 | |
| 1986 | #280 | +49 | 877 | |
| 1985 | #329 | +48 | 723 | |
| 1984 | #377 | +3 | 606 | |
| 1983 | #380 | +19 | 586 | |
| 1982 | #399 | -22 | 583 | |
| 1981 | #377 | +73 | 609 | |
| 1980 | #450 | +58 | 476 | |
| 1979 | #508 | +4 | 389 | |
| 1978 | #512 | +11 | 365 | |
| 1977 | #523 | -42 | 351 | |
| 1976 | #481 | -27 | 382 | |
| 1975 | #454 | -39 | 417 | |
| 1974 | #415 | +13 | 476 | |
| 1973 | #428 | -20 | 458 | |
| 1972 | #408 | -24 | 484 | |
| 1971 | #384 | -41 | 597 | |
| 1970 | #343 | -12 | 762 | |
| 1969 | #331 | -1 | 734 | |
| 1968 | #330 | -22 | 696 | |
| 1967 | #308 | +9 | 787 | |
| 1966 | #317 | +90 | 791 | |
| 1965 | #407 | +15 | 521 | |
| 1964 | #422 | +8 | 536 | |
| 1963 | #430 | -12 | 510 | |
| 1962 | #418 | +108 | 550 | |
| 1961 | #526 | +219 | 345 | |
| 1960 | #745 | +169 | 188 | |
| 1959 | #914 | -12 | 131 | |
| 1958 | #902 | 130 | ||
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| 1956 | #946 | +34 | 114 | |
| 1955 | #980 | 104 | ||
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| 1952 | #893 | 108 | ||
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