| Covers listed |
|
| 1978: | , #0 , #1 /June, |
| 1979: | #2 /October, |
| 1980: | #3 , #4 /January, #5 , #6 /November, |
| 1981: | #7 /January, #8 /March, #9 /May, #10 /July, #11 /November, |
| 1982: | #12 /January, #13 /February, #14 /March, #15 /April, #16 /July, #17 /September, #18 /October, #19 /November, |
| 1983: | #20 /January, #21 /February, #22 /July, #23 /November, |
| 1984: | #24 /September, |
| 1985: | #25 /February, #26 /August, #27 /September, |
| 1986: | #28 /May, #29 /August, |
| 1987: | #30 , |
| 1988: | #31 /June, #32 /October, #33 /November, |
| 1989: | #34 /May, #35 /August, #36/37 /September, #38 /November, |
| 1990: | #39 /January, #40 /February, #41/42 /March, #43/44 /May, #45 /July, #46-47 / August, #48 /October, |
| 1991: | #49 /January, #50 /April, #51/52 /June, #53/54 /August, #55/56 /November, |
| 1992: | #57 /January, #58 /February, #59 /March, #60 /April, #61/62 /May, #63 /June, #64 /July, #65 /August, |
| 1993: | #66 /January, #67 /January, #68 /February, #69 /March, #70 /April, #71 /May, #72 /June, #73 /June, #74 /July, #75 /July, #76 /August, #77/78 /November, |
| 1994: | #79 /January, #80/81 /June, #82 /October, #83/84 /November, |
| 1995: | #85 /January, #86/87 /February, #88 /March, #89 /April, #90 /May, #91 /June, #92/93 /July, #94/95 /October, |
| 1996: | #96/97 /January, #98 /February, #99 /June, #100 /July, #101 /August, #102 / September, #103 /October, #104 /December, |
| 1997: | #105 /January, #106 /february, #107 /June, #108 /August, #109 /September, #110 /October, #111 /November, |
| 1998: | #112 /January, #113 /February, #114 /June, #115 /July, #116 /August, #117 /September, #118 /October, #119 /November, #120 /November, #121 /December, #122 /December, |
| 1999: | #123 /June, #124 /July, #125 /August, #126 /September, #127 /December, |
| 2000: | , #128 /January, #129 /February, #130 /August, #131 /September, |
| 2001: | , #132 /May, #133 /November, |
| 2002: | #134 /January, #135 /August, |
| 2003: | #136 , |
