| Covers listed | |
| 1978: | #1 /January, #2 /March, |
| 1979: | #3 /April, #4 /May, #5 /June, #6 /July, #7 /October, |
| 1980: | #8 /July, |
| 1981: | #9 /January, |
| 1982: | #10 /October, |
| 1983: | #11 /January, |
| 1984: | #12 /March, #13 /July, #14 /August, |
| 1985: | #15 /October, |
| 1986: | #16 /January, |
| 1987: | #17 /October, |
