Numbers which are in Bold are the editions that I have
1949: #1
1950: #2; #3; #4
1950: #1
(only one issue published)
1950: #5; #6; #7
1951: #8; #9; #10; #11; #12; #13
1952: #14; #15
1952: Unnumbered
1953: #16; #17; #18; #19; #19 (US Variant Cover)
1954: #20; #21; #22; #23; #20 (US Variant Cover)
1955: #24; #25; #26; #27
1956: #28; #29; #30; #31
1957: #32; #33; #34; #35
1958: #36; #37; #38; #39
1959: #40; #41; #42; #43
1960: #44; #45; #46; #47
1961: #48; #49; #50; #51
1962: #52; #53; #54; #55
1963: #56; #57; #58; #59
1964: #60; #61; #62; #63
1965: #64; #65; #66; #67
1966: #68; #69; #70; #71
1967: #72; #73; #74; #75
1968: Unnumbered Reprint
1968: #76; #77; #78; #79
1969: #80; #81; #82; #83
1970: #84; #85; #86; #87
1971: #88; #89; #90; #91
1972: #92; #93; #94; #95
1973: #96; #97
1973: #98; #99
1974: #100; #101; #102; #103
1975: #104; #105; #106; #107
1976: #108; #109; #110; #111
1977: #112; #113; #114; #115
1978: #116; #117; #118; #119
1979: #120; #121; #122; #123
1980: #124; #125; #126; #127
1981: #128; #129; #130; #131
1982: #132