| Covers listed |
|
| 1973: | #4 / July, #5 / August, |
| 1974: | #16 / July, |
| 1975: | May, |
| 1979: | December, |
| 1980: | April, |
| 1981: | June, August, November, |
| 1982: | February, March, April, June, |
| 1983: | March, |
| 1985: | May, |
| 1991: | December, |
| 1996: | July, |
| 2000: | April, May, July, November, |
| 2001: | February, September, |
| 2002: | October, |
| 2003: | October, |
| 2004: | July, December, |
| 2005: | July, September, October, November, |
| 2007: | October, |
| 2008: | March, April, June, July, September, October, November, |
| 2009: | February, April, May, September, October, December, |
| 2010: | March, |
| 2011: | June, |
| 2012: | February, March, May, August, October, |
| 2013: | January, February, March, May, October, |
| 2014: | January, April, June, August, September, November, |
| 2015: | February, March, July, August, September, |
| 2016: | March, May, June, July, August, October, November, |
| 2017: | March, June, July, August, September, October, November, December, |
| 2018: | March, April, June, August, November, December, |
| 2019: | May, July, September, |
| 2020: | May, June/July, |
| 2021: | August/September, |
| 2022: | June/July, August/September, October/November, December 2022/ January 2023, |
| 2023: | July, September, |
| 2024: | May, |
| 2025: | March, |
