Year	constant 2010 US$
1989	2818005052.14683
1990	3040696521.95845
1991	3933067601.92371
1992	8144330584.74295
1993	10500300568.9552
1994	11374719463.1509
1995	12330825217.5124
1996	12693313495.9867
1997	12106349343.4826
1998	12263731884.9751
1999	11503380508.126
2000	10905204721.6584
2001	13195297713.2338
2002	12944587056.7164
2003	13734206867.131
2004	15574590587.33
2005	14709254338.7728
2006	14210641930.5473
2007	16145838729.7512
2008	18455439851.874
2009	21862303125.5058
2010	23142116397.1476
2011	21918623513.7645
2012	22863440796.0199
2013	23888760199.005
2014	24117444112.7695
2015	25491798341.6252
2016	28271018242.1227
2017	30076873631.8408
2018	28694922056.3847