| Covers listed |
|
| 1975: | Summer, Autumn, |
| 1977: | #2 / February, |
| 1978: | March, September, |
| 1979: | #23 / October, |
| 1980: | #28 / April, October, #34 / November, |
| 1981: | #41 / July, #43 / October, November, |
| 1982: | #47 / March, #53 / October, #55 / December, |
| 1983: | #56 / February, #57 / March, #63 / October, #65 / December 1983/ January 2004, |
| 1984: | #67 / March, April, #69 / May, #70 / June, September, October, #74 / November, #75 / December 1984/ January 1985, |
| 1985: | #76 / February, #78 / April, #80 / June, #81 / July/August, #82 / September, #83 / October, #85 / December 1985/ January 1986, |
| 1986: | #86 / February, #87 / March, #88 / April, #89 / May, #90 / June, #91 / July/August, #92 / September, #93 / October, |
| 1987: | #96 / February, #98 / April, #99 / May, #101 / July/August, #102 / September, #103 / October, #104 / November, #105 / December 1987/ January 1988, |
| 1988: | #106 / February, #108 / April, #110 / June, #111 / July/August, #111 / July/August, #115 / December 1988/ January 1989, |
| 1989: | #116 / February, #117 / March, #118 / April, #119 / May, #121 / July/August, #122 / September, #123 / October, #124 / November, #125 / December 1989/ January 1990, |
| 1990: | #126 / February, #127 / March, #128 / April, #129 / May, #130 / June, #131 / July/August, #132 / September, #133 / October, #134 / November, #135 / December 1990/ January 1991, |
| 1991: | #136 / February, #138 / April, #139 / May, #142 / September, #143 / October, |
| 1992: | #146 / February, #147 / March, #148 / April, #149 / May, #150 / June, July/August, #152 / September, #153 / October, #154 / November, #155 / December 1992/ January 1993, |
| 1993: | #156 / February, #157 / March, #158 / April, #161 /1 July, #163 / October, #164 / November, #165 / December 1993/ January 1994, |
| 1994: | #166 / February, #167 / March, #168 / April, #170 / June, #171 / July/August, #172 / September, #173 / October, #174 / November, #165 / December 1994/ January 1995, |
| 1995: | #175 / January, #177 / March, #179 / May, #180 / June, #181 / July/August, #182 / September, #183 / October, #184 / November, |
