Information on Fawcett Comics' annual sales of Hapalong Cassidy from 1943 to the mid-1950s is taken from the book "Juvenile Delinquency" (from 1950).
CIRCULATION DATA
1943 - 305,903
1946 - 878,595
1947 - 4,333,843
1948 - 8,582,681
1949 - 8,050,054
1950 (First 6 months) - 3,650,087