Year	constant 2010 US$
1990	4999054282.9784
1991	5025304974.35679
1992	4590674769.98115
1993	4156196369.63
1994	3466138404.33839
1995	3112608481.22318
1996	3259267979.38535
1997	3832710228.9126
1998	4235633259.14119
1999	4604647447.45827
2000	4898429836.60453
2001	5252957438.18265
2002	5576524575.00708
2003	6154048298.17466
2004	7363327307.74803
2005	8423646071.25129
2006	9569261886.00052
2007	10363510900.0818
2008	11886947489.3044
2009	11625434832.1722
2010	12881067472.3061
2011	14141698353.3379
2012	15124227402.8775
2013	14333228251.4635
2014	14426637733.5502
2015	13494893837.4245
2016	13488144161.8393
2017	14427580141.0847
2018	15209438788.4295