| Covers listed |
|
| 1978: | #21 /Summer, #22 /Winter, |
| 1979: | #23 /Summer, #24 /Winter, |
| 1980: | #25 /Summer, #26 /Winter, |
| 1981: | #27 , #28 , #29 /Winter, |
| 1982: | #30 /Summer, |
| 1985: | #42 /Summer, |
| 1986: | #47 /Autumn, #48 /Winter, |
| 1987: | #49 /Spring, #50 /Summer, #51 /Autumn, #53 /Spring, |
| 1988: | #54 /Summer, |
| 1989: | #57 /Spring, |
| 1990: | #61 /Spring, #62 /Summer, #63 /Autumn, #64 /Winter, |
| 1991: | #65 /Spring, #66 /Summer, #67 /Autumn, |
| 1992: | #68 /Winter, #69 /Spring, #70 /Summer, #71 /Autumn, |
| 1993: | #72 /Winter, #73 /Spring, #74 /Summer, #75 /Autumn, #76 /Winter, |
| 1994: | #77 /Spring, #78 /Summer, #79 /Autumn, #80 /Winter, |
| 1995: | #81 /Spring, #82 /Summer, #83 /Autumn, #84 /Winter, |
| 1996: | #85 /Spring, #86 /Summer, #87 /Autumn, #88 /Winter, |
| 1997: | #89 /Spring, #90 /Summer, #91 /Autumn, #92 /Winter, |
| 1998: | #93 /Spring, #94 /Summer, #95 /Autumn, #96 /Winter, |
| 1999: | #97 /Spring, #98 /Summer, #99 /Autumn, |
| 2000: | #100 /Winter, |
| 2001: | #105 /Spring, |
| 2002: | #110 /Summer, |
| 2004: | #119 /Autumn, |
| 2006: | #124 /Winter, |
| 2007: | #128 /Winter, #130 /Summer, |
| 2008: | #134 /Summer, |
| 2013: | #152 /Winter, |
| 2014: | #156 /Winter, #157 /Spring, |
