| Covers listed | |
| 1967: | June, July/August, |
| 1969: | March, |
| 1972: | February, |
| 1974: | December, |
| 1976: | #301 / November, |
| 1981: | #380 / September, |
| 1982: | June, September, |
| 1984: | February, |
| 1989: | #472 / September, |
| 1990: | January, March, #482 / September, October, |
| 1991: | #486 / February, |
| 1992: | April, November, #508 / December, |
| 1993: | #512 / April, |
| 2000: | April, |
| 2001: | June, |
| 2002: | August, |
| 2003: | January, |
| 2005: | April, |
| 2008: | May, |
| 2010: | September, |
| 2011: | February, |
| 2012: | June, September, #747 / November, |
| 2014: | February, |
| 2015: | March, |
| 2016: | October, |
| 2017: | January, October, December, |
| 2018: | November, |
| 2019: | February, October, |
| 2020: | February, #837 / May, September, |
| 2021: | April, July, October, |
| 2022: | January, May, July, September, October, |
| 2023: | January, February, April, May, June, August, September, October, November, December, |
| 2024: | January, February, March, April, May, June, August, October, November, December, |
| 2025: | February, March, |
