Year	US Dollars adjusted for inflation)
1900	142500000
1901	142100000
1902	145400000
1903	143600000
1904	144200000
1905	148200000
1906	152800000
1907	155400000
1908	148700000
1909	151800000
1910	156200000
1911	160600000
1912	163400000
1913	170000000
1914	171300000
1915	185100000
1916	189700000
1917	192300000
1918	194900000
1919	175000000
1920	164500000
1921	161600000
1922	169900000
1923	175600000
1924	182700000
1925	192300000
1926	185700000
1927	201300000
1928	204200000
1929	211200000
1930	210200000
1931	199800000
1932	201500000
1933	207900000
1934	222400000
1935	231500000
1936	242500000
1937	251500000
1938	255100000
1939	256600000
1940	282800000
1941	310600000
1942	319300000
1943	325800000
1944	313600000
1945	300800000
1946	289400000
1947	285200000
1948	293200000
1949	304400000
1950	305700000
1951	313800000
1952	310400000
1953	317700000
1954	324300000
1955	328700000
1956	324700000
1957	322000000
1958	314400000
1959	320800000
1960	333900000
1961	341400000
1962	343400000
1963	358100000
1964	380000000
1965	394300000
1966	408000000
1967	424600000
1968	450600000
1969	467300000
1970	486800000
1971	503400000
1972	527300000
1973	568800000
1974	568200000
1975	575600000
1976	597900000
1977	621300000
1978	653700000
1979	679000000
1980	671200000
1981	661900000
1982	669400000
1983	688200000
1984	702300000
1985	723000000
1986	878000000
1987	968600000
1988	1091000000
1989	1171000000
1990	1221000000
1991	1233000000
1992	1237000000
1993	1260000000
1994	1302000000
1995	1354000000
1996	1459000000
1997	1589000000
1998	1813000000
1999	2070000000
2000	2187000000
2001	2307000000
2002	2441000000
2003	2591000000
2004	2721000000
2005	2876000000
2006	3011000000
2007	3219000000