1926 Through 2006
| YEAR | CLUBS | MEMBERS | YEAR | CLUBS | MEMBERS |
| 1926 | 84 | 4283 | 1970-1971 | 141 | 8965 |
| 1927 | 84 | 4106 | 1971-1972 | 143 | 8927 |
| 1928 | 82 | 3882 | 1972-1973 | 150 | 9049 |
| 1929 | 82 | 3721 | 1973-1974 | 157 | 8902 |
| 1930 | 80 | 3367 | 1974-1975 | 178 | 9266 |
| 1931 | 80 | 2962 | 1975-1976 | 178 | 9441 |
| 1932 | 78 | 2721 | 1976-1977 | 181 | 9357 |
| 1933 | 79 | 2666 | 1977-1978 | 190 | 9763 |
| 1934 | 75 | 2725 | 1978-1979 | 199 | 10,030 |
| 1935 | 73 | 2941 | 1979-1980 | 205 | 10,331 |
| 1936 | 73 | 3019 | 1980-1981 | 210 | 10,416 |
| 1937 | 73 | 3320 | 1981-1982 | 205 | 10,444 |
| 1938 | 74 | 3472 | 1982-1983 | 213 | 10,850 |
| 1939 | 73 | 3557 | 1983-1984 | 220 | 11,119 |
| 1940 | 77 | 3863 | 1984-1985 | 228 | 11,271 |
| 1941 | 76 | 3954 | 1985-1986 | 234 | 11,435 |
| 1942 | 76 | 4063 | 1986-1987 | 236 | 11,532 |
| 1943 | 75 | 4543 | 1987-1988 | 253 | 12,061 |
| 1944 | 75 | 5060 | 1988-1989 | 12,086 | |
| 1945 | 87 | 5769 | 1989-1990 | 257 | 12,066 |
| 1946 | 87 | 6166 | 1990-1991 | 260 | 12,032 |
| 1947 | 89 | 6378 | 1991-1992 | 270 | 12,291 |
| 1948 | 93 | 6566 | 1992-1993 | 270 | 12,318 |
| 1949 | 96 | 6648 | 1993-1994 | 281 | 12,466 |
| 1950 | 97 | 6678 | 1994-1995 | 275 | 12,028 |
| 1951 | 100 | 6799 | 1995-1996 | 282 | 12,056 |
| 1952 | 102 | 7090 | 1996-1997 | 282 | 11,767 |
| 1953 | 103 | 7263 | 1997-1998 | 278 | 11,713 |
| 1954 | 104 | 7273 | 1998-1999 | 266 | 11,204 |
| 1955 | 111 | 7506 | 1999-2000 | 245 | 10,882 |
| 1956 | 117 | 7726 | 2000-2001 | 262 | 10,814 |
| 1957 | 119 | 7877 | 2001-2002 | 284 | 10,902 |
| 1958 | 119 | 7916 | 2002-2003 | 289 | 10,558 |
| 1959 | 122 | 8088 | 2003-2004 | 294 | 10,239 |
| 1960 | 124 | 8130 | 2004-2005 | 280 | 10,186 |
| 1961 | 129 | 8290 | 2005-2006 | ||
| 1962 | 128 | 8304 | |||
| 1963 | 128 | 8324 | |||
| 1964 | 131 | 8537 | |||
| 1965 | 134 | 8734 | |||
| 1966 | 134 | 8665 | |||
| 1967 | 136 | 8793 | |||
| 1968 | 139 | 8850 | |||
| 1969 (9 Mos.) | 138 | 8803 | |||
| 1969-1970 | 140 | 8882 |