| Covers listed | |
| 1970: | #26 (#1) / June, #29 / , #31 / , #34 / , #36 / , #37 / , #39 / , #40 / , #42 / , #43 / , #47 / , #51 / , #52 / , |
| 1971: | #3 / , #4 / , #5 / , #11 / , #18 / , #22 / , #28 / , #35 / , #39 / , #48 / , |
| 1972: | #2 /8 January, #3 /15 January, #4 /22 January, #5 /29 January, #7 /12 February, #8 /19 February, #9 /26 February, #11 /11 March, #12 /18 March, #14 /1 April, #18 /29 April, #19 /6 May, #20 /13 May, #21 /20 May, #22 /27 May, #25 /17 June, |
| 1980: | #41 /6 October, |
| 1983: | #4 /24 January, #29 /18 July, |
| 1984: | #30 /23 July, |
| 1990: | #5 /29 January, #10 /5 March, |
| 1992: | #12 /16 March, #41 /5 October, |
| 1998: | #38 /14 September, |
| 2000: | #30 /24 July, #43 /23 October, |
