Year	current US$
1960	2332409504.3659415
1961	2558575054.249042
1962	2880107474.240252
1963	3078813813.238771
1964	2471908045.9770117
1965	2451466666.666667
1966	2429977777.777778
1967	2516000000
1968	2537488888.8888893
1969	2516000000
1970	2688022222.2222223
1971	3276954545.454545
1972	3254954545.454545
1973	4883441860.4651165
1974	11207186046.511627
1975	9024255813.95349
1976	9339325581.39535
1977	9811906976.744186
1978	9474348837.209303
1979	14447813953.488373
1980	19286255813.953487
1981	20231441860.465115
1982	16968302325.581396
1983	15325488372.093023
1984	15003121140.14251
1985	13973026666.666668
1986	11675344329.896914
1987	9720924137.931034
1988	12017951724.13793
1989	14376184482.34445
1990	18555857828.327694
1991	16217872415.310163
1992	15407112356.887192
1993	15662133382.201038
1994	17447363636.363636
1995	20300239573.624233
1996	24925953989.9353
1997	25115255474.623886
1998	19108095208.99064
1999	22447252466.053078
2000	34844302171.504265
2001	27944600467.66059
2002	28270835558.618313
2003	28308417019.68602
2004	40705555517.107956
2005	57708689556.16701
2006	67003462040.0559
2007	71713558453.65627
2008	97382107619.13643
2009	59597633591.3457
2010	112179378987.66483
2011	94764308628.44754
2012	99786475648.70724
2013	91879401807.24883
2014	80524231883.13548