| Year | Rank | Trend | +/- | Quantity |
|---|---|---|---|---|
| 2013 | 355 | -15 | 890 | |
| 2012 | 340 | +27 | 927 | |
| 2011 | 367 | +17 | 867 | |
| 2010 | 384 | +2 | 832 | |
| 2009 | 386 | +3 | 831 | |
| 2008 | 389 | +35 | 826 | |
| 2007 | 424 | +53 | 774 | |
| 2006 | 477 | -5 | 664 | |
| 2005 | 472 | -13 | 650 | |
| 2004 | 459 | -32 | 657 | |
| 2003 | 427 | -11 | 704 | |
| 2002 | 416 | +7 | 695 | |
| 2001 | 423 | +13 | 670 | |
| 2000 | 436 | +2 | 647 | |
| 1999 | 438 | -23 | 618 | |
| 1998 | 415 | -12 | 638 | |
| 1997 | 403 | +4 | 648 | |
| 1996 | 407 | +12 | 638 | |
| 1995 | 419 | -50 | 618 | |
| 1994 | 369 | 0 | 705 | |
| 1993 | 369 | +27 | 687 | |
| 1992 | 396 | -33 | 651 | |
| 1991 | 363 | -18 | 708 | |
| 1990 | 345 | -20 | 771 | |
| 1989 | 325 | +19 | 780 | |
| 1988 | 344 | +14 | 718 | |
| 1987 | 358 | -1 | 667 | |
| 1986 | 357 | -22 | 667 | |
| 1985 | 335 | -12 | 709 | |
| 1984 | 323 | -25 | 725 | |
| 1983 | 298 | -7 | 782 | |
| 1982 | 291 | +23 | 841 | |
| 1981 | 314 | -2 | 763 | |
| 1980 | 312 | +14 | 774 | |
| 1979 | 326 | +2 | 718 | |
| 1978 | 328 | -9 | 699 | |
| 1977 | 319 | +1 | 743 | |
| 1976 | 320 | -20 | 698 | |
| 1975 | 300 | -12 | 783 | |
| 1974 | 288 | -28 | 829 | |
| 1973 | 260 | -22 | 960 | |
| 1972 | 238 | -11 | 1,160 | |
| 1971 | 227 | -25 | 1,306 | |
| 1970 | 202 | -32 | 1,598 | |
| 1969 | 170 | -25 | 1,880 | |
| 1968 | 145 | -18 | 2,195 | |
| 1967 | 127 | -16 | 2,728 | |
| 1966 | 111 | -16 | 3,215 | |
| 1965 | 95 | -2 | 3,930 | |
| 1964 | 93 | -18 | 4,568 | |
| 1963 | 75 | -2 | 5,766 | |
| 1962 | 73 | -1 | 6,115 | |
| 1961 | 72 | -5 | 6,360 | |
| 1960 | 67 | -1 | 6,584 | |
| 1959 | 66 | -5 | 6,871 | |
| 1958 | 61 | -5 | 7,191 | |
| 1957 | 56 | -6 | 7,785 | |
| 1956 | 50 | 0 | 8,248 | |
| 1955 | 50 | -1 | 8,333 | |
| 1954 | 49 | -6 | 8,352 | |
| 1953 | 43 | -1 | 8,901 | |
| 1952 | 42 | +1 | 9,323 | |
| 1951 | 43 | -4 | 8,929 | |
| 1950 | 39 | +2 | 8,965 | |
| 1949 | 41 | -2 | 8,718 | |
| 1948 | 39 | -3 | 8,785 | |
| 1947 | 36 | -1 | 9,941 | |
| 1946 | 35 | +1 | 8,969 | |
| 1945 | 36 | +5 | 7,640 | |
| 1944 | 41 | +3 | 6,565 | |
| 1943 | 44 | +2 | 6,029 | |
| 1942 | 46 | 0 | 5,707 | |
| 1941 | 46 | +1 | 5,088 | |
| 1940 | 47 | -1 | 5,090 | |
| 1939 | 46 | -2 | 4,770 | |
| 1938 | 44 | -2 | 4,788 | |
| 1937 | 42 | 0 | 4,700 | |
| 1936 | 42 | +1 | 4,719 | |
| 1935 | 43 | +5 | 4,645 | |
| 1934 | 48 | -1 | 4,357 | |
| 1933 | 47 | +2 | 4,378 | |
| 1932 | 49 | +1 | 4,345 | |
| 1931 | 50 | +5 | 4,535 | |
| 1930 | 55 | +7 | 4,574 | |
| 1929 | 62 | 0 | 4,352 | |
| 1928 | 62 | -2 | 4,409 | |
| 1927 | 60 | -4 | 4,699 | |
| 1926 | 56 | -3 | 4,642 | |
| 1925 | 53 | -1 | 4,880 | |
| 1924 | 52 | +3 | 5,105 | |
| 1923 | 55 | 0 | 4,919 | |
| 1922 | 55 | -8 | 4,803 | |
| 1921 | 47 | +1 | 5,186 | |
| 1920 | 48 | +5 | 5,054 | |
| 1919 | 53 | 0 | 4,526 | |
| 1918 | 53 | +2 | 4,730 | |
| 1917 | 55 | +7 | 4,258 | |
| 1916 | 62 | +7 | 3,826 | |
| 1915 | 69 | +2 | 3,265 | |
| 1914 | 71 | +10 | 2,340 | |
| 1913 | 81 | +8 | 1,759 | |
| 1912 | 89 | +9 | 1,390 | |
| 1911 | 98 | +18 | 937 | |
| 1910 | 116 | 0 | 709 | |
| 1909 | 116 | +14 | 627 | |
| 1908 | 130 | -6 | 531 | |
| 1907 | 124 | +16 | 526 | |
| 1906 | 140 | +11 | 438 | |
| 1905 | 151 | -9 | 393 | |
| 1904 | 142 | +1 | 395 | |
| 1903 | 143 | -1 | 381 | |
| 1902 | 142 | +8 | 388 | |
| 1901 | 150 | -22 | 325 | |
| 1900 | 128 | 0 | 495 | |
| 1899 | 128 | +2 | 382 | |
| 1898 | 130 | -5 | 406 | |
| 1897 | 125 | -10 | 396 | |
| 1896 | 115 | +4 | 413 | |
| 1895 | 119 | +1 | 394 | |
| 1894 | 120 | +3 | 390 | |
| 1893 | 123 | -10 | 354 | |
| 1892 | 113 | -11 | 396 | |
| 1891 | 102 | +6 | 379 | |
| 1890 | 108 | -5 | 372 | |
| 1889 | 103 | -11 | 374 | |
| 1888 | 92 | +15 | 446 | |
| 1887 | 107 | -2 | 288 | |
| 1886 | 105 | -14 | 306 | |
| 1885 | 91 | +7 | 330 | |
| 1884 | 98 | +4 | 295 | |
| 1883 | 102 | -1 | 247 | |
| 1882 | 101 | -2 | 254 | |
| 1881 | 99 | -1 | 216 | |
| 1880 | 98 | 215 |
