| Year | Rank | Trend | +/- | Quantity |
|---|---|---|---|---|
| 2013 | 975 | -45 | 203 | |
| 2012 | 930 | 219 | ||
| 2011 | ||||
| 2010 | 939 | 214 | ||
| 2009 | ||||
| 2008 | 913 | +87 | 225 | |
| 2007 | 1000 | -67 | 194 | |
| 2006 | 933 | +16 | 201 | |
| 2005 | 949 | -136 | 184 | |
| 2004 | 813 | -16 | 221 | |
| 2003 | 797 | +11 | 219 | |
| 2002 | 808 | -19 | 211 | |
| 2001 | 789 | -78 | 214 | |
| 2000 | 711 | -22 | 246 | |
| 1999 | 689 | -47 | 245 | |
| 1998 | 642 | -54 | 274 | |
| 1997 | 588 | -1 | 305 | |
| 1996 | 587 | -36 | 306 | |
| 1995 | 551 | +8 | 339 | |
| 1994 | 559 | -18 | 337 | |
| 1993 | 541 | -49 | 361 | |
| 1992 | 492 | -24 | 412 | |
| 1991 | 468 | -28 | 449 | |
| 1990 | 440 | -17 | 502 | |
| 1989 | 423 | -19 | 489 | |
| 1988 | 404 | -19 | 490 | |
| 1987 | 385 | -35 | 499 | |
| 1986 | 350 | -3 | 540 | |
| 1985 | 347 | +1 | 539 | |
| 1984 | 348 | -1 | 530 | |
| 1983 | 347 | -49 | 523 | |
| 1982 | 298 | +9 | 675 | |
| 1981 | 307 | -14 | 618 | |
| 1980 | 293 | -12 | 698 | |
| 1979 | 281 | -7 | 728 | |
| 1978 | 274 | -7 | 707 | |
| 1977 | 267 | -8 | 735 | |
| 1976 | 259 | -8 | 759 | |
| 1975 | 251 | +2 | 800 | |
| 1974 | 253 | -7 | 775 | |
| 1973 | 246 | -13 | 804 | |
| 1972 | 233 | +1 | 917 | |
| 1971 | 234 | -19 | 1,014 | |
| 1970 | 215 | -13 | 1,169 | |
| 1969 | 202 | -6 | 1,231 | |
| 1968 | 196 | -7 | 1,199 | |
| 1967 | 189 | -5 | 1,277 | |
| 1966 | 184 | -11 | 1,350 | |
| 1965 | 173 | 0 | 1,538 | |
| 1964 | 173 | +3 | 1,587 | |
| 1963 | 176 | +2 | 1,640 | |
| 1962 | 178 | -7 | 1,706 | |
| 1961 | 171 | +1 | 1,824 | |
| 1960 | 172 | -13 | 1,867 | |
| 1959 | 159 | -1 | 2,020 | |
| 1958 | 158 | -10 | 2,081 | |
| 1957 | 148 | -8 | 2,303 | |
| 1956 | 140 | -7 | 2,349 | |
| 1955 | 133 | -8 | 2,414 | |
| 1954 | 125 | +1 | 2,632 | |
| 1953 | 126 | -10 | 2,574 | |
| 1952 | 116 | -5 | 2,647 | |
| 1951 | 111 | -9 | 2,711 | |
| 1950 | 102 | -1 | 2,841 | |
| 1949 | 101 | -4 | 2,935 | |
| 1948 | 97 | +1 | 3,231 | |
| 1947 | 98 | -8 | 3,345 | |
| 1946 | 90 | -7 | 3,465 | |
| 1945 | 83 | -5 | 3,177 | |
| 1944 | 78 | -4 | 3,406 | |
| 1943 | 74 | -5 | 3,735 | |
| 1942 | 69 | -2 | 3,717 | |
| 1941 | 67 | -1 | 3,519 | |
| 1940 | 66 | -5 | 3,310 | |
| 1939 | 61 | 0 | 3,386 | |
| 1938 | 61 | -5 | 3,491 | |
| 1937 | 56 | +1 | 3,556 | |
| 1936 | 57 | -7 | 3,645 | |
| 1935 | 50 | +4 | 3,919 | |
| 1934 | 54 | +2 | 3,774 | |
| 1933 | 56 | -3 | 3,353 | |
| 1932 | 53 | -1 | 3,677 | |
| 1931 | 52 | +1 | 3,647 | |
| 1930 | 53 | -2 | 3,803 | |
| 1929 | 51 | 0 | 3,814 | |
| 1928 | 51 | 0 | 3,875 | |
| 1927 | 51 | 0 | 3,915 | |
| 1926 | 51 | +1 | 3,806 | |
| 1925 | 52 | +1 | 3,883 | |
| 1924 | 53 | +2 | 3,921 | |
| 1923 | 55 | 0 | 3,691 | |
| 1922 | 55 | 0 | 3,672 | |
| 1921 | 55 | +1 | 3,745 | |
| 1920 | 56 | -1 | 3,550 | |
| 1919 | 55 | +2 | 3,423 | |
| 1918 | 57 | +3 | 3,422 | |
| 1917 | 60 | +3 | 2,951 | |
| 1916 | 63 | +3 | 2,699 | |
| 1915 | 66 | -6 | 2,451 | |
| 1914 | 60 | +3 | 2,004 | |
| 1913 | 63 | +3 | 1,582 | |
| 1912 | 66 | -7 | 1,306 | |
| 1911 | 59 | -9 | 706 | |
| 1910 | 50 | +5 | 733 | |
| 1909 | 55 | +1 | 568 | |
| 1908 | 56 | -6 | 523 | |
| 1907 | 50 | +12 | 550 | |
| 1906 | 62 | -7 | 420 | |
| 1905 | 55 | +5 | 441 | |
| 1904 | 60 | +4 | 401 | |
| 1903 | 64 | -2 | 340 | |
| 1902 | 62 | +10 | 370 | |
| 1901 | 72 | -7 | 268 | |
| 1900 | 65 | +4 | 419 | |
| 1899 | 69 | -1 | 269 | |
| 1898 | 68 | -2 | 315 | |
| 1897 | 66 | +6 | 291 | |
| 1896 | 72 | +6 | 278 | |
| 1895 | 78 | +5 | 249 | |
| 1894 | 83 | -7 | 239 | |
| 1893 | 76 | +11 | 244 | |
| 1892 | 87 | -3 | 233 | |
| 1891 | 84 | -10 | 190 | |
| 1890 | 74 | +18 | 236 | |
| 1889 | 92 | +3 | 186 | |
| 1888 | 95 | -7 | 192 | |
| 1887 | 88 | +12 | 177 | |
| 1886 | 100 | -10 | 155 | |
| 1885 | 90 | +9 | 162 | |
| 1884 | 99 | -5 | 154 | |
| 1883 | 94 | +2 | 143 | |
| 1882 | 96 | +2 | 152 | |
| 1881 | 98 | +10 | 129 | |
| 1880 | 108 | 124 |
