Year	constant 2011 international $
1990	17769933012.7482
1991	17600820672.2277
1992	19287992235.1328
1993	21103388774.0271
1994	22178775836.6969
1995	22652637970.2716
1996	23065521535.4809
1997	24176573166.26
1998	25269360315.5535
1999	25630936427.3349
2000	25869473720.1129
2001	26489328804.2794
2002	27551923921.0941
2003	28643851533.9749
2004	29373810107.1026
2005	30783887864.394
2006	32352348533.1883
2007	34821939813.9033
2008	36852888275.0227
2009	37201483824.7007
2010	39021407715.3524
2011	41452862863.5949
2012	43998477420.63
2013	45284479745.0224
2014	47163905925.4506
2015	49343580417.0828
2016	51297718611.3353
2017	52728907394.9002
2018	53882858786.5422