| Year | Total Registrations: |
| 2009 | 2309 |
| 2008 | 2505 |
| 2007 | 2491 |
| 2006 | 2885 |
| 2005 | 3076 |
| 2004 | 3328 |
| 2003 | 3497 |
| 2002 | 3764 |
| 2001 | 4144 |
| 2000 | 4525 |
| 1999 | 4829 |
| 1998 | 5354 |
| 1997 | 6672 |
| 1996 | 7166 |
| 1995 | 7873 |
| 1994 | 8795 |
| 1993 | 10218 |
| 1992 | 11708 |
| 1991 | 13343 |
| 1990 | 13992 |
| 1989 | 15211 |
| 1988 | 16534 |
| 1987 | 17664 |
| 1986 | 17657 |
| 1985 | 19959 |
| 1984 | 21888 |
| 1983 | 23467 |
| 1982 | 25848 |
| 1981 | 27998 |
| 1980 | 31624 |
| 1979 | 34048 |
| 1978 | 28319 |
| 1977 | 26879 |
| 1976 | 25088 |
| 1975 | 24169 |
| 1974 | 22161 |
| 1973 | 22481 |
| 1972 | 22489 |
| 1971 | 23867 |
| 1970 | 23738 |
| | Year | Total Registrations: |
| 1969 | 23021 |
| 1968 | 21731 |
| 1967 | 18370 |
| 1966 | 14254 |
| 1965 | 10563 |
| 1964 | 8319 |
| 1963 | 7315 |
| 1962 | 6314 |
| 1961 | 4899 |
| 1960 | 4416 |
| 1959 | 3630 |
| 1958 | 3327 |
| 1957 | 2778 |
| 1956 | 2525 |
| 1955 | 2414 |
| 1954 | 2058 |
| 1953 | 2010 |
| 1952 | 1441 |
| 1951 | 1129 |
| 1950 | 977 |
| 1949 | 777 |
| 1948 | 603 |
| 1947 | 317 |
| 1946 | 198 |
| 1945 | 185 |
| 1944 | 178 |
| 1943 | 188 |
| 1942 | 156 |
| 1941 | 141 |
| 1940 | 96 |
| 1939 | 116 |
| 1938 | 86 |
| 1937 | 89 |
| 1936 | 56 |
| 1935 | 63 |
| 1934 | 42 |
| 1933 | 51 |
| 1932 | 62 |
| 1931 | 44 |
| 1930 | 56 |
| | Year | Total Registrations: |
| 1929 | 42 |
| 1928 | 43 |
| 1927 | 45 |
| 1926 | 46 |
| 1925 | 55 |
| 1924 | 53 |
| 1923 | 51 |
| 1922 | 69 |
| 1921 | 65 |
| 1920 | 59 |
| 1919 | 49 |
| 1918 | 63 |
| 1917 | 54 |
| 1916 | 64 |
| 1915 | 67 |
| 1914 | 52 |
| 1913 | 47 |
| 1912 | 42 |
| 1911 | 31 |
| 1910 | 47 |
| 1909 | 33 |
| 1908 | 27 |
| 1907 | 38 |
| 1906 | 22 |
| 1905 | 30 |
| 1904 | 24 |
| 1903 | 35 |
| 1902 | 40 |
| 1901 | 34 |
| 1900 | 40 |
| 1899 | 47 |
| 1898 | 35 |
| 1897 | 35 |
| 1896 | 30 |
| 1895 | 41 |
| 1894 | 52 |
| 1893 | 53 |
| 1892 | 34 |
| 1891 | 31 |
| 1890 | 42 |
| | Year | Total Registrations: |
| 1889 | 46 |
| 1888 | 40 |
| 1887 | 34 |
| 1886 | 58 |
| 1885 | 45 |
| 1884 | 48 |
| 1883 | 42 |
| 1882 | 41 |
| 1881 | 40 |
| 1880 | 33 |
|