Year	constant 2010 US$
1990	75993754109.8193
1991	42632496057.4468
1992	41524051159.2983
1993	16069807799.178
1994	21404983987.9301
1995	11227459849.0017
1996	7904131733.28222
1997	8346763110.8993
1998	8113053743.61258
1999	8900019956.32047
2000	9852322091.51601
2001	13842512538.9906
2002	15365188918.2256
2003	16348561009.6231
2004	18817193721.2236
2005	25403211524.1381
2006	33456029577.2899
2007	41284740498.6178
2008	36000293714.6218
2009	36828300470.4957
2010	37564866478.9115
2011	39593369269.1596
2012	44621727166.3266
2013	47611382886.6693
2014	51705961814.7954
2015	54549789714.2957
2016	55913534457.2882
2017	57199545749.6362