Year	constant 2010 US$
1960	160012021.772883
1961	173551497.569338
1962	179705813.791703
1963	338486975.995947
1964	781597171.008594
1965	829600792.568134
1966	885120292.852681
1967	940251179.621093
1968	972472468.658552
1969	995248419.544759
1970	1039176044.782
1971	1055531897.17288
1972	1347492003.94448
1973	1244595918.87177
1974	1362792435.68407
1975	994852041.36944
1976	1083599959.53037
1977	1027361705.00553
1978	1110194883.76259
1979	1263943271.08513
1980	1331620695.69334
1981	1638932526.14627
1982	1503768754.35947
1983	1951010292.94619
1984	1822804868.81324
1985	2010668271.16654
1986	2056629341.93617
1987	1880115248.49356
1988	2003743073.05041
1989	1821253552.1813
1990	1621444379.51857
1991	1723596653.05415
1992	1662316488.11848
1993	1597536992.81094
1994	1676230316.27551
1995	1742716888.44583
1996	1724566857.05741
1997	1440318238.52777
1998	1324089535.22821
1999	1352047497.70238
2000	1406720125.78898
2001	1488388512.69151
2002	1348198683.06943
2003	1069581261.98588
2004	1347312158.35061
2005	1347366214.7359
2006	2203500433.74896
2007	2122848306.88996
2008	2086484838.13543
2009	2132083362.45904
2010	2201200461.04663
2011	2198960470.39056
2012	2330029752.08452
2013	2357993582.91989
2014	2476008402.16656
2015	2648623413.94353
2016	2703969584.59089
2017	2638109669.71611
2018	2531526062.37175