| Covers listed |
|
| 1937: | #1 / , #9 , |
| 1951: | #3 , |
| 1952: | #3 , |
| 1953: | #2 / , #3 / , #4 , #5 / , #6 / , #8 , |
| 1954: | #1 / , #2 , #3 , #4 , #5 , #6 , #8 , |
| 1955: | #1 , #2 , #3 , #4 , #5 , #6 , #7-8 , |
| 1956: | #2 / , #3 / , #8 / , |
| 1957: | #1 / , #2 / , #5 / , |
| 1958: | #3 / , |
| 1959: | #4 / , #5 / , #6 / , #7 / , |
| 1960: | #1 / , #2 / , #5 / , #8 / , |
| 1961: | #4 / , |
| 1962: | #2 / , #4 / , |
| 1963: | #2 / , #3 / , #6 , |
| 1964: | #1 / , #2 / , #3 , #6 , |
| 1966: | #2 / , #7 / , |
| 1968: | #4-5 , #7 / , |
| 1970: | #2 / , #3 / , |
| 1971: | #4-5 / , #8 / , |
| 1972: | #1 / , #2 , #2 / , #3 , #7 / , #8 / , |
| 1973: | #1 , #2 , #3 / , |
| 1974: | #3 , |
| 1975: | #5 / , |
| 1976: | #5 , |
| 1978: | #2 / , #3 / , #4 , |
| 1979: | #3 , #6 / , |
| 1980: | #2 / , #3 / , #5 , #6 / , |
| 1981: | #4 , |
| 1982: | #2 / , #5 / , #6 / , |
| 1983: | #6 / , |
| 1984: | #2 , |
| 1985: | #6 / , |
| 1986: | #2 / , |
