Year	constant 2010 US$
1970	15067333262.7159
1971	15711394507.8015
1972	15788246645.1419
1973	16605199903.4564
1974	19084652317.1772
1975	21678816517.149
1976	23111392536.9122
1977	24801698913.8322
1978	25258362600.62
1979	25125086544.8576
1980	26345797967.7048
1981	28126662579.9372
1982	27908468727.9815
1983	25530691040.8595
1984	26050403830.8013
1985	27648519719.6214
1986	27467637667.9052
1987	26831824207.148
1988	25150039756.0755
1989	24932534447.8882
1990	27331723565.3625
1991	30976182435.3139
1992	33051451318.7433
1993	31421080816.5259
1994	32866643441.1915
1995	33204080582.2854
1996	33512726211.4341
1997	36032875917.2265
1998	36729384517.2115
1999	32734376593.209
2000	32235504638.2362
2001	35165430349.4347
2002	38243542376.0414
2003	39006712164.7838
2004	39915464247.6828
2005	41708826119.2048
2006	43969441820.0446
2007	46805186888.1958
2008	51694790822.9196
2009	53375768836.5152
2010	55045938249.5724
2011	59723376521.0755
2012	63338690020.2686
2013	67397805180.9463
2014	69681425286.1801
2015	69982665824.0214
2016	69145014751.1883
2017	70607540975.9737