| Covers listed |
|
| 1952: | #2 / , |
| 1953: | , #6 / , |
| 1954: | February, December, |
| 1956: | , |
| 1957: | , , |
| 1958: | , #22 / , #23 / , |
| 1959: | , |
| 1961: | #29 / , #30 / , #32 , |
| 1962: | #34 , |
| 1963: | #35 , |
| 1964: | #36 / , #37 , #38 , #39 , |
| 1965: | #40 / , #41 / , |
| 1967: | #43 / , |
| 1969: | #45 , #46 , #47 , #48 , #49 , |
| 1970: | #50 , #51 / , |
| 1971: | #52 , |
| 1972: | , #53 , |
| 1973: | #54 , #55 / , #58 / , |
| 1975: | #59 , #60 , |
| 1976: | #61 , #62 /January, |
| 1977: | #63 , |
| 1983: | #65 /January, #68 , |
| 1984: | #69 /April, #70 /October, |
| 1985: | #71 /January, #72 , #73 /June, #74 /December, #75 , |
| 1986: | #76 /January, #78 /April, #79 /May, #80 /December, |
| 1987: | , #81 /January, #82 /February, #83 /21 September, |
| 1988: | #84 /January, #85 /May, #86 /October, |
| 1989: | #87 /April, #88 /November, |
| 1990: | #89 , #90 /December, |
| 1991: | #91 /January, #92 , #93 , #94 , |
| 1992: | #95 , #96 /March, |
| 1993: | #97 , #98 , |
| 1994: | #99 /April, #100 , |
| 1995: | #101 /July, #102 , |
| 1996: | #103 , #104 , |
| 1997: | #105 , #106 , |
| 1998: | #107 /October, |
| 1999: | #108 /May, #109 /October, |
| 2000: | #110 , #111 , |
| 2001: | #112 , #113 , |
| 2002: | #114 , #115 , |
| 2003: | #116 , #117 , |
| 2004: | #118 , #119 , |
| 2005: | #120 , #121 , |
| 2006: | #122 , |
| 2007: | #123 , #124 , |
| 2008: | #125 , #126 , #127 , |
| 2009: | #128 , #129 , #130 , |
| 2010: | #131 , #132 , #133 , #134 , |
| 2011: | #135 , #136 , #137 , |
| 2012: | #138 , #139 , |
| 2013: | #140 , #141 , |
| 2014: | #142 , #143 , |
| 2015: | #144 , |
