| Covers listed | |
| 1983: | November, |
| 1985: | August, |
| 1989: | June, August, |
| 1990: | February, August, |
| 1991: | January, October, |
| 1992: | August, October, |
| 1993: | June, |
| 1994: | February, March, |
| 2003: | February, September, |
| 2004: | September, |
| 2005: | May, |
| 2007: | February, |
| 2015: | March, |
