1933 -35		1968		1990 10-12
1936 -37		Early 1969		1991
1938 -41		1969		1992
1941 -43		1970		1993
1943 -45		1971		1994
1946		1972		1995
1946 -47		1973		1996
1947 -53		1974		1997
1951 -53		1975		1998
1953 -55		1976		1999
Late 1955		1977		2000 1-2
1956		1978		2000 2-12
1957		1979		2001
1958		1980		2002
1959		1981		2003
1960		1982		2004
1961		1983		2005 1-3
1962		1984		2005 4-12
1963		1985		2006
1964		1986		2007
1965		1987		2008
1966		1988		2009
1967 1-7		1989		2010
1967 8-12		1990 1-9		2011