Year	constant 2010 US$
1990	199820961609.989
1991	189235304498.252
1992	182882880472.311
1993	179055938322.581
1994	166888725751.614
1995	162071770483.122
1996	158733589499.67
1997	157933516943.85
1998	149585427282.101
1999	152836443978.942
2000	160699249207.648
2001	166913724661.011
2002	173801781104.991
2003	172457147710.544
2004	182274292360.218
2005	185111360453.823
2006	187961683935.621
2007	181764863038.205
2008	192941036172.937
2009	198637156820.867
2010	193364764393.412
2011	210740009534.854
2012	205446469996.83
2013	217842691414.352
2014	221920186444.535
2015	228813737557.58
2016	232007164119.285
2017	239152209160.522
2018	242266730116.895