Table 1
Covers with People vs. Covers Without People

# of # of covers # of covers % of covers % of covers
issues with people w/o people with people w/o people
1936-1939 162 125 37 77.2% 22.8%
1940-1949 522 461 60 88.5% 11.5%
1950-1959 518 441 77 85.1% 14.9%
Total 1202 1027 174 85.5% 14.5%
1960-1969 512 393 119 76.8% 23.2%
1970-1979 165 129 36 78.2% 21.8%
1980-1989 120 80 40 66.7% 33.3%
1990-2000 129 82 47 63.6% 36.4%
Total 926 684 242 73.9% 26.1%