| Covers listed |
|
| 1986: | , |
| 1987: | December, , |
| 1988: | February, #4 / May, November, #11 / December, |
| 1989: | #5 / May, June, September, |
| 1990: | February, May, August, |
| 1991: | Vol 4 No 5 April, October, November, |
| 1992: | #2 / February, October, |
| 1993: | March, August, October, December, |
| 1994: | #2 / February, June, September, October, November, #12 / December, |
| 1995: | #2 / February, April, June, #9 / September, |
| 1996: | January, April, July, #9 / September, November, |
| 1997: | January, |
| 1998: | #5 / May, August, |
| 1999: | January, February, August, December, |
| 2000: | January, February, March, December, |
| 2001: | #2 / February, April, May, June, |
| 2002: | January, February, November, |
| 2003: | March, April, November, |
| 2004: | November, |
| 2007: | March, December, |
| 2008: | June, December, |
| 2009: | August, |
| 2010: | June, October, |
| 2011: | February, May, December, |
| 2012: | March, |
| 2013: | July, |
