Year	constant 2010 US$
1990	179089082322.846
1991	169601711214.976
1992	163908365631.184
1993	160478477434.391
1994	149573640843.651
1995	145256455641.089
1996	142248878109.832
1997	142704380754.091
1998	135741944082.342
1999	140481006522.595
2000	148492621928.066
2001	153821194853.672
2002	160386184890.924
2003	158837339686.272
2004	167347002463.26
2005	170510222712.61
2006	173865333836.15
2007	167248905120.234
2008	178535018182.357
2009	182988501563.682
2010	178854400078.316
2011	196064562831.197
2012	192367831566.065
2013	203632561144.045
2014	207876845556.39
2015	215801049588.411
2016	218519434888.846
2017	225345954216.461
2018	228268331092.558