| Covers listed | |
| 1976: | July, |
| 1984: | January, June, |
| 1986: | March, |
| 1987: | July, |
| 1988: | November, December, |
| 1992: | June, |
| 1993: | February, |
| 1994: | July, August, |
| 1996: | October, December, |
| 1997: | January, February, |
| 2000: | April, |
| 2002: | April, May, November, December, |
| 2003: | January, June, |
| 2004: | December, |
| 2005: | January, |
| 2006: | May, |
| 2007: | January, February, July, December, |
| 2008: | December, |
| 2009: | March, August, November, |
| 2010: | April, |
| 2011: | March, |
| 2012: | March, August, |
| 2014: | April, |
| 2016: | August, |
| 2017: | August, |
| 2018: | March, May, |
| 2020: | November/December, |
| 2021: | January/February, March/April, July/August, |
| 2022: | September/October, November/December, |
| 2024: | March/April, |
