Year	constant 2010 US$
1990	124571090096.053
1991	88071760697.9274
1992	68431758061.3463
1993	51186955032.1193
1994	48320485548.5732
1995	31545309402.4459
1996	26151061493.6783
1997	28112391106.0343
1998	26088298946.8031
1999	26244828740.5079
2000	33593380787.322
2001	33089480075.7942
2002	34115253958.3023
2003	31522494657.4281
2004	36219346361.2324
2005	40601887270.884
2006	45717725067.0153
2007	57650051309.3119
2008	51020295409.3711
2009	43010109030.0375
2010	44257402191.9853
2011	45496609453.2937
2012	56779768597.8258
2013	61208590548.1489
2014	58760246926.415
2015	58701486679.2054
2016	57527456945.2372
2017	56722072547.9079