| Covers listed | |
| 1988: | July, |
| 1989: | July, |
| 1990: | January, July, |
| 1991: | July, |
| 1994: | January, |
| 1999: | September, |
| 2008: | March, June, September, December, |
| 2010: | March, Vol 23 # 4December, |
| 2011: | Vol 24 # 1March/April/May, Vol 24 # 2June/July/August, Vol 24 # 3September/October/November, Vol 24 # 4December, |
| 2013: | Vol 26March, December, |
| 2014: | Vol 27 # 1March/April/May, June, |
| 2015: | March, |
| 2016: | March, December, |
| 2017: | March, June, September, December, |
| 2018: | March, June, September, December, |
| 2019: | March, June, September, December, |
| 2020: | March, June, September, |
| 2021: | December, |
| 2022: | March, June, September, December, |
| 2023: | March, June, September, December, |
| 2024: | March, June, Autumn/Winter, |
| 2025: | Spring, Summer, Autumn, Winter, |
| 2026: | Spring, |
