| Covers listed |
|
| 1953: | December, |
| 1954: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1955: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1956: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1957: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1958: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1959: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1960: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1961: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1962: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1963: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1964: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1965: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1966: | January, January, January, February, March, April, May, June, July, August, September, October, November, December, |
| 1967: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1968: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1969: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1970: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1971: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1972: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1973: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1974: | January, January, February, March, April, May, June, July, August, September, October, November, December, |
| 1975: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1976: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1977: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1978: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1979: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1980: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1981: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1982: | January, February, March, April, May, June, June, July, August, September, October, November, December, |
| 1983: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1984: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1985: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1986: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1987: | January, February, March, April, May, June, July, August, August, September, October, November, December, |
| 1988: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1989: | January, January, January, February, March, April, May, June, July, August, September, October, November, December, |
| 1990: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1991: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1992: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1993: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1994: | January, January, January, January, January, February, March, April, May, June, July, August, September, October, November, December, |
| 1995: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1996: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1997: | January, February, March, April, May, June, July, July, August, September, September, October, November, December, |
| 1998: | January, February, March, April, May, June, June, July, August, September, October, November, December, |
| 1999: | January, February, March, April, May, June, July, August, September, October, November, November, December, |
| 2000: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2001: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2002: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2003: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2004: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2005: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2006: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2007: | January, Vol 54 #2February, March, April, Vol 54 #5May, Vol 54 #6June, July, August, September, October, November, December, |
| 2008: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2009: | January, February, March, April, May, June, July/August, September, October, November, December, |
| 2010: | January/February, March, April, May, June, July, August, September, October, November, December, |
| 2011: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2012: | January/February, March, April, May, June, July/August, September, October, November, December, |
| 2013: | January/February, March, April, May, June, July/August, September, October, November, December, |
| 2014: | January/February, March, April, May, June, July/August, September, October, November, December, |
| 2015: | March, April, May, June, July/August, September, October, November, December, |
| 2016: | January/February, March, April, May, June, July/August, September, October, November, December, |
| 2017: | January/February, March/April, May/June, July/August, September/October, November/December, |
| 2018: | January/February, March/April, May/June, July/August, September/October, November/December, |
| 2019: | Spring, Summer, Fall, Winter, |
| 2020: | Spring, Winter, |
| 2025: | Spring, Winter, |
