| Covers listed |
|
| 1991: | #1 /December, |
| 1992: | January, February, March, July, October, November, |
| 1993: | January, February, March, May, June, July, August, September, November, December, |
| 1994: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1995: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1996: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1997: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1998: | January, February, March, April, May, June, July/August, September, October, November, December, |
| 1999: | January/February, March, April, May, June, July, August, September, October, November, December, |
| 2000: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2001: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2002: | January, February, March, April, May, June, July, August, September, October, December, |
| 2003: | January, February, March, April, July, August, September, October, November, December, |
| 2004: | January, March, April, May, June, July, August, September, October, November, December, |
| 2005: | January, March, April, September, |
| 2007: | February, October, |
| 2008: | May, October, |
| 2009: | February, |
