Year	constant 2010 US$
1975	1062999820.30575
1976	1176181415.60928
1977	1317464798.80246
1978	1506294414.4039
1979	1689287930.77923
1980	1817093328.76264
1981	2121100331.82867
1982	2362719655.30361
1983	2556233271.05363
1984	2645383871.00913
1985	2814912569.29575
1986	3059142097.00636
1987	3287636371.21958
1988	4122931987.18429
1989	4551181122.67685
1990	5170875545.43006
1991	5793263123.58256
1992	6017745119.78512
1993	6371302051.39643
1994	5919938665.56676
1995	6603004534.11728
1996	6676502919.90657
1997	7408140487.10869
1998	7827933021.72103
1999	8000706520.46241
2000	8030092522.59312
2001	8367753841.5802
2002	8003956313.60648
2003	8697141248.94425
2004	8807343710.67506
2005	9375770315.61569
2006	10230611720.3601
2007	11203336216.6302
2008	11946534722.7819
2009	11512302654.8228
2010	12237098092.3222
2011	13745619579.0261
2012	14446182556.6339
2013	15360229198.1744
2014	16053175889.8353
2015	15883799813.8726
2016	16114280524.2159
2017	16711490467.7579
2018	17472113828.6795