See the charts in my book, "The Entrepreneurial Adventure."
The following table shows the deficits as a share of GDP from 1940 to 1961 (Eisenhower's budgets were 1954 through 1961) and from 1982 through 1989 (Reagan's budgets):
RECEIPTS, OUTLAYS, AND SURPLUSES OR DEFICITS(-) (percentage of GDP) Total Total Unified Year Receipts Outlays Deficit ---- -------- ------- ------- 1940 6.8 9.8 -3.0 1941 7.6 12.0 -4.3 1942 10.1 24.3 -14.2 1943 13.3 43.6 -30.3 1944 20.9 43.6 -22.7 1945 20.4 41.9 -21.5 1946 17.6 24.8 -7.2 1947 16.5 14.8 1.7 1948 16.2 11.6 4.6 1949 14.5 14.3 0.2 1950 14.4 15.6 -1.1 1951 16.1 14.2 1.9 1952 19.0 19.4 -0.4 1953 18.7 20.4 -1.7 (Eisehower) 1954 18.5 18.8 -0.3 1955 16.6 17.3 -0.8 1956 17.5 16.5 0.9 1957 17.8 17.0 0.8 1958 17.3 17.9 -0.6 1959 16.1 18.7 -2.6 1960 17.9 17.8 0.1 1961 17.8 18.4 -0.6 : (Reagan) 1982 19.1 23.1 -4.0 1983 17.5 23.5 -6.0 1984 17.4 22.2 -4.8 1985 17.7 22.9 -5.1 1986 17.4 22.4 -5.0 1987 18.4 21.6 -3.2 1988 18.2 21.3 -3.1 1989 18.4 21.2 -2.8 Source: Budget of the United States Government, FY 2006, Historical Table 1.1
As a percentage of GDP, the deficit was very high through 1946, the end of the Second World War. However, it reached a maximum of 2.6% of GDP under Eisenhower, less than every one of Reagan's deficits.