Year	constant 2010 US$
1990	141957945507.238
1991	106484415715.523
1992	104928580251.362
1993	72058290003.1959
1994	66080787922.1762
1995	49618741117.3612
1996	43723197156.2278
1997	44524019188.3317
1998	43277346650.8083
1999	44556612964.2242
2000	46614269483.2421
2001	54243892722.5601
2002	56089780143.0185
2003	61675031042.2354
2004	70172084268.2248
2005	82253075360.1378
2006	96895397965.5469
2007	111942978165.387
2008	111261468889.238
2009	112507820024.833
2010	120756856570.866
2011	132706959246.734
2012	147638947435.877
2013	160042270712.28
2014	167120743507.953
2015	172176702338.77
2016	175202907764.184
2017	178107249119.534