Year	constant 2010 US$
1970	552096525513.374
1971	572951932676.22
1972	591915893778.49
1973	626212918520.864
1974	645916186598.869
1975	647915328366.55
1976	676958703389.73
1977	697141243197.248
1978	715426851310.533
1979	763787126025
1980	809549501111.331
1981	822568492595.341
1982	830608354174.445
1983	829118970930.393
1984	853588578403.841
1985	878061002928.108
1986	913746503147.654
1987	947015510289.282
1988	985732134276.98
1989	1024860708042.21
1990	1045815717486.75
1991	1073828658496.77
1992	1092355080881.47
1993	1059147069048.63
1994	1075365374816.69
1995	1091786784121.3
1996	1103289013196.68
1997	1139519438852.67
1998	1176951249932.95
1999	1206873177018.83
2000	1234953094570.92
2001	1242571978698.07
2002	1243027315826.14
2003	1253299287024.09
2004	1265643452726.33
2005	1281995194390.8
2006	1300574088220.94
2007	1315674381216.67
2008	1301445956840.5
2009	1281156171497.75
2010	1296521349384.74
2011	1296366921493.14
2012	1245171294135.95
2013	1214574043019.82
2014	1217734781984.71
2015	1240607459902.08
2016	1256692065153.72
2017	1276206135092.43
2018	1283262933480.34