| Covers listed |
|
| 1979: | #1 , #2 , |
| 1980: | #3 , |
| 1981: | #4 , #5 , |
| 1983: | #6 , |
| 1984: | #7 , |
| 1986: | #8 , |
| 1988: | #9 , |
| 1989: | #10 , |
| 1990: | #11 , #12 , |
| 1991: | #13 , #14 , #15 , #16 , |
| 1992: | #17 , #18 , #19 , #20 , #21 , #22 , |
| 1993: | #23 , #24 , #25 , #26 , #27 , #28 , #29 , #30 , |
| 1994: | #31 , #32 , #33 , #34 , #35 , #36 , #37 , #38 , |
| 1995: | #39 , #40 , #41 /April, #42 , #43 , #44 , #45 , #46 , |
| 1996: | #47 , #48 , #49 , #50 , #51 /June, #52 / July, #53 , #54 , |
| 1997: | #55 , #56 / January, #57 , #58 / April, #59 , #60 , #61 , #62 , #63 , #64 , |
| 1998: | #65 , #66 , #67 , #68 , #69 , #70 , #71 , #72 , #73 , #74 , |
| 1999: | #75 , #76 , #77 , #78 , #79 /August, #80 , #81 , #82 /December, |
| 2000: | #83 /January/February, #84 /March, #85 , #86 , #87 , #88 , #89 , #90 /November, #91 , |
| 2001: | #92 , #93 , #94 , #95 /June, #96 /July, #97 /August, #98 /September, #99 /October, #100 /November, #101 /December, |
| 2002: | #102 /January/February, #103 /March, #104 /April, #105 , #106 , #107 /August, #108 /September, #109 /October, #110 /December, |
| 2003: | #111 , #112 , #113 , #114 , #115 , #116 , #117 /June, #118 /July, #119 /August, #120 /September, #121 /October, #122 /November, #123 /December, |
| 2004: | #124 /January, #125 /February, #126 /March, #127 /April, #128 /May, #129 /June, #130 /July, #131 /August, #132 /September, #133 /October, #134 /November, #135 /December, |
| 2005: | #136 /January, #137 /February, #138 /March, #139 /April, #140 /May, #141 /June, #142 /July, #143 /August, #144 /September, #145 /October, #146 /November, #147 /December, |
| 2006: | #148 /January, #149 /February, #150 /March, #151 /April, #152 /May, #153 /June, #154 /July, #155 /August, #156 /September, #157 /October, #158 /November, #159 /December, |
| 2007: | #160 /January, #161 /February, #162 /March, #163 /April, #164 /May, #165 /June, #166 /July, #167 /August, #168 /September, #169 /October, #170 /November, #171 /December, #172 , |
| 2008: | #173 /January, #174 /February, #175 /March, #176 /April, #177 /May, #178 /June, #179 /July, #180 /August, #181 /September, #182 /October, #183 /November, #184 /December, #185 , |
| 2009: | #186 /January, #187 /February, #188 /March, #189 /April, #190 /May, #191 /Vol 31 # 191 - June, |
| 2010: | #201 /Vol 32 # 1 - April, #202 /Vol 32 # 2, #203 /Vol 32 #3, #204 /Vol 32 #4, |
| 2011: | #205 /Vol 33 # 5 - February/Spring/March/April, #206 /May/June/July, #207 /October/November/December, |
| 2012: | #8/208 /January/February/March, #9 , #10 , #11 , #12 , |
| 2013: | #13 , |
