| Covers listed | |
| 1958: | February, April, June, December, |
| 1959: | April, June, October, |
| 1960: | January, March, July, September, December, |
| 1961: | March, May, August, October, |
| 1962: | February, May, September/October, |
| 1963: | February/March, Special , |
| 1964: | December, |
