Year	constant 2010 US$
1990	51695780169.0449
1991	38358268886.6281
1992	31990796251.4778
1993	22873419320.1981
1994	20265849515.9904
1995	11448353619.2864
1996	8712197104.43033
1997	8999699609.21218
1998	8351721236.76554
1999	8393479843.4212
2000	9744830098.02435
2001	12210272112.9661
2002	13431299324.1554
2003	14505803269.6589
2004	17769609005.8416
2005	22762869135.8203
2006	29523441269.1589
2007	34630996608.3256
2008	34977306575.2882
2009	34697488121.6907
2010	36015992670.7611
2011	37240536421.153
2012	40927349526.8794
2013	43178353751.4851
2014	45078201316.8764
2015	46971485772.1423
2016	48380630345.2208
2017	50315855559.0725