looking for 1900-1950 world population: 1950 2,555,078,074 1.47 37,783,610 1951 2,592,861,684 1.61 42,057,724 1952 2,634,919,408 1.71 45,334,288 1953 2,680,253,696 1.77 47,968,370 1954 2,728,222,066 1.87 51,447,715 1955 2,779,669,781 1.89 52,953,889 1956 2,832,623,670 1.95 55,820,377 1957 2,888,444,047 1.94 56,498,740 1958 2,944,942,787 1.76 52,326,211 1959 2,997,268,998 1.39 42,063,403 1960 3,039,332,401 1.33 40,781,960 1961 3,080,114,361 1.80 56,083,390 1962 3,136,197,751 2.19 69,508,948 1963 3,205,706,699 2.19 71,110,065 1964 3,276,816,764 2.08 69,021,089 1965 3,345,837,853 2.08 70,227,393 1966 3,416,065,246 2.02 69,742,104 1967 3,485,807,350 2.04 71,868,340 1968 3,557,675,690 2.08 74,665,661 1969 3,632,341,351 2.05 75,268,761 1970 3,707,610,112 2.07 77,580,647 1971 3,785,190,759 2.01 77,006,527 1972 3,862,197,286 1.96 76,511,302 1973 3,938,708,588 1.91 75,889,828 1974 4,014,598,416 1.82 73,625,631 1975 4,088,224,047 1.75 72,167,756 1976 4,160,391,803 1.73 72,536,792 1977 4,232,928,595 1.70 72,474,692 1978 4,305,403,287 1.74 75,373,540 1979 4,380,776,827 1.72 75,928,390 1980 4,456,705,217 1.70 76,259,715 1981 4,532,964,932 1.76 80,436,954 1982 4,613,401,886 1.73 80,530,264 1983 4,693,932,150 1.68 79,634,655 1984 4,773,566,805 1.68 81,036,085 1985 4,854,602,890 1.70 83,004,818 1986 4,937,607,708 1.73 85,962,468 1987 5,023,570,176 1.71 86,583,085 1988 5,110,153,261 1.67 86,179,948 1989 5,196,333,209 1.67 87,422,136 1990 5,283,755,345 1.56 83,182,744 1991 5,366,938,089 1.53 82,725,730 1992 5,449,663,819 1.48 81,337,993 1993 5,531,001,812 1.44 79,976,536 1994 5,610,978,348 1.41 79,887,428 1995 5,690,865,776 1.36 77,746,508 1996 5,768,612,284 1.35 78,192,518 1997 5,846,804,802 1.32 77,770,099 1998 5,924,574,901 1.31 77,934,526 1999 6,002,509,427 1.29 77,632,256 2000 6,080,141,683 1.26 77,258,877 2001 6,157,400,560 1.24 76,849,827 2002 6,234,250,387 1.22 76,299,210 geohive.com but I question this data, at least for 2001,2002, US Census shows 6.189M current |