| Covers listed | |
| 1976: | December, |
| 1978: | #10 / , |
| 1979: | February, March, December, #1 / , |
| 1980: | #8 / , |
| 1981: | March, |
| 1982: | #6 , |
| 1986: | #9 /September, |
| 1987: | January, |
| 1988: | #2 , |
| 1989: | #4 , |
| 1990: | #9 , |
| 1991: | #9 , |
| 1992: | #3 /March, #9 /September, #10 /October, |
| 1993: | February, #5 /May, |
| 1994: | #3 /March, #5 / , #6 / , #9 / , #10 / , #11 /November, |
| 1996: | #3 /March, April, August, #11 /November, |
| 1997: | May, #8 /August, |
| 1998: | February, September, |
| 1999: | December, |
| 2000: | May, November, |
| 2001: | #5 /May, #9 /September, #12 / December, |
| 2002: | #1 /January, February, April, August, October, December, |
| 2003: | #6 /June, #8 /August, |
| 2004: | #7 /July, #8 /August, #10 /October, |
| 2011: | June, August, December, |
