Year	constant 2010 US$
1980	3715661517.37188
1981	3729960135.8681
1982	3656894641.95871
1983	3085482414.11001
1984	2848628892.70806
1985	2651070755.28847
1986	2684673318.42997
1987	2959107572.96893
1988	3060364106.33982
1989	3297311235.98527
1990	3169574598.39737
1991	3301958526.96243
1992	3058555488.47356
1993	3257560048.92372
1994	3512241210.19339
1995	3401968672.74066
1996	3672517436.0472
1997	3972725456.03416
1998	4229431378.9411
1999	4482458714.65742
2000	4505058522.95137
2001	4619517472.35014
2002	6172476579.25563
2003	6532976599.37006
2004	6851766083.06795
2005	7314821701.13383
2006	7697820852.93926
2007	8274259391.46739
2008	8753589179.68734
2009	9309249809.88832
2010	9790282670.4169
2011	10456048137.2518
2012	11469006611.6994
2013	12364174732.4781
2014	12928111340.5754
2015	13775353849.388
2016	14227344267.237
2017	14754320817.3578
2018	15740399223.9347