Year	constant 2010 US$
1987	1241682014.43005
1988	1371694028.58805
1989	1383596266.02371
1990	1948915747.31237
1991	1786097204.16557
1992	1622350786.65724
1993	1375406025.34141
1994	1147348653.66831
1995	1094555639.07339
1996	1084684668.14934
1997	1082705053.48917
1998	1124503594.2806
1999	1159797640.71339
2000	1220893263.98893
2001	1264874088.16148
2002	1318066563.26183
2003	1415991463.74663
2004	1581442820.45832
2005	1714030671.88997
2006	1875032426.94348
2007	2108814486.27224
2008	2337156803.77652
2009	2394164551.78311
2010	2365464066.67783
2011	2529666450.76985
2012	2688794946.59558
2013	2818527082.39471
2014	2946043708.24972
2015	3052165660.78965
2016	3152328019.38899
2017	3256350231.92702
2018	3323745664.80383