16 (37 issues)
- November 1965 0 articles
- October 1966 1 article
- December 1966 1 article
- January 1967 5 articles
- February 1967 8 articles
- March 1967 10 articles
- April 1967 15 articles
- May 1967 11 articles
- June 1967 14 articles
- July 1967 13 articles
- August 1967 14 articles
- September 1967 14 articles
- October 1967 11 articles
- November 1967 11 articles
- December 1967 13 articles
- January 1968 10 articles
- February 1968 10 articles
- March 1968 8 articles
- April 1968 13 articles
- May 1968 10 articles
- June 1968 7 articles
- July 1968 6 articles
- August 1968 8 articles
- September 1968 9 articles
- October 1968 7 articles
- December 1968 7 articles
- February 1969 8 articles
- June 1969 4 articles
- July 1969 2 articles
- August 1969 4 articles
- December 1977 1 article
- April 1987 5 articles
- May 1987 3 articles
- March 1988 1 article
- May 1989 or later 1 article
- February 1990 1 article
- May 1990 1 article