| Covers listed | |
| 1976: | #1 , |
| 1977: | #2 , #3 , #4 , |
| 1978: | #5 , #6 , #7 , |
| 1979: | #8 , #9 , #10 , #11 , |
| 1980: | #12 , #13 , #14 , |
| 1981: | #15 , #16 , #17 , #18 , #19 , |
| 1982: | #20 , #21 , #22 , |
| 1983: | #23 , #24 , #25 , #26 , |
| 1984: | #27 , #28 , #29 , #30 , #31 , #32 , #33 , #34 , #35 , #36 / , #38 / , #40 / , |
