| Covers listed |
|
| 1967: | June/July, October, |
| 1990: | October, |
| 1997: | February, |
| 1999: | July, August, November, |
| 2000: | August, |
| 2001: | January, May, |
| 2002: | April, October, |
| 2003: | February, March, May, |
| 2004: | February, March, June, August, November, |
| 2005: | January, February, March, September, October, December, |
| 2006: | January, April, June, July, August, September, |
| 2007: | January, February, March, July, November, |
| 2008: | February, |
| 2009: | September, |
| 2010: | June, August, |
| 2011: | January, December, |
| 2012: | November, |
| 2013: | February, April, June, August, October, |
| 2014: | January, February, May, July, November, December, |
| 2015: | March, April, June, September, October, December, |
| 2016: | January, February, March, May, September, October, |
| 2017: | January, February, June, November, December, |
| 2018: | January, February, October, |
| 2019: | February, April, May, June, September, October, December, |
| 2020: | February, March, May, November, December, |
| 2021: | January, February, March, June, July, October, November, December, |
| 2022: | August, September, October, |
| 2023: | January, May, August, October, November, December, |
| 2024: | January, February, May, June, October, December, |
| 2025: | January, March, May, |
| 2026: | February, |
