Year	constant 2010 US$
1990	19658151354.2284
1991	13443160207.8214
1992	14917333014.8382
1993	16156016862.4923
1994	19502900491.3723
1995	20939286273.0807
1996	20801248940.4572
1997	19580035245.1408
1998	18672303278.4923
1999	16274515302.8508
2000	20464058509.6211
2001	23976059694.4302
2002	24547032297.5548
2003	26645084802.1491
2004	31185564697.3762
2005	31505943503.0385
2006	41907549848.8114
2007	53258414312.3032
2008	59178932259.1894
2009	45861347132.2046
2010	45118474464.2689
2011	47256137265.2128
2012	44852841207.2494
2013	44947484430.45
2014	45608214827.2375
2015	48721622437.4133
2016	48630763027.286
2017	50652708203.1021
2018	55490337165.5036