Year Volume Number
1969 7 (1-4)
1970 8 (1-4)
1971 9 (1-4)
1972 10 (1-4)
1973 11 (1-4)
1974 12 (1-4)
1975
1976
1977
1978
1979 17 (1-8)
1980
1981
1982
1983
1984 22 (1-4)
1985 23 (1-4)
1986
1987
1988
1989
1990
1991
1992 30 (2-4)
1993 31 (1-4)
1994 32 (1,
3, 4)
1995 33 (1-4)
1996 34 (1-4)
1997 35 (1,
3, 4)
1998 36 (2,
3)
1999 37 (1-4)
2000 38 (1-3)