Year	constant 2010 US$
1980	2330744351.78468
1981	3184691512.8526
1982	3247379727.37488
1983	3097561288.29852
1984	3208709278.79389
1985	2763416034.8223
1986	2981743503.00462
1987	3536039828.9613
1988	3311686410.80686
1989	3409567990.26867
1990	2817769317.70889
1991	3227811970.71518
1992	3117524326.61312
1993	3111048106.86773
1994	3130361020.05136
1995	3225802750.91515
1996	3570177266.02196
1997	3836714882.8061
1998	3977200540.89493
1999	4030822105.66574
2000	4264653417.47255
2001	4648528451.61995
2002	4580483144.83964
2003	4960946634.43151
2004	5055283887.88723
2005	5095158157.13271
2006	5538294637.49112
2007	5876802860.18685
2008	6628270160.6294
2009	7550032248.81167
2010	7132651327.6512
2011	7765695432.44277
2012	8510920436.54046
2013	9315604859.85904
2014	9955295702.89024
2015	11233056479.8121
2016	12048285287.9309
2017	11647623084.3304
2018	11937945410.247