Year	constant 2010 US$
1980	859890029.69592
1981	777974443.282143
1982	645235330.461969
1983	496207176.016697
1984	424649692.200853
1985	420927766.608523
1986	388326594.42228
1987	417090449.106385
1988	476009137.685749
1989	514849948.383528
1990	663049396.733451
1991	491998440.092812
1992	675208465.957147
1993	682631648.73148
1994	769563103.557607
1995	869201971.076266
1996	1021189898.91162
1997	892339792.451488
1998	1123280004.19065
1999	1152793638.94611
2000	1056492025.23487
2001	1436331681.72151
2002	1384938489.39606
2003	1338301922.16897
2004	1429478405.57993
2005	1494178284.00423
2006	1918523832.19429
2007	2159604295.23432
2008	2703308294.5106
2009	2616772416.95394
2010	2721750054.63585
2011	2598385197.07375
2012	3632175668.25796
2013	3786832830.92633
2014	5381216378.72811
2015	5802460358.54235
2016	4168321394.03669
2017	3258760165.54729
2018	2589762060.8135