Year	constant 2010 US$
1970	442123066342.273
1971	443765913561.807
1972	452440151675.365
1973	463611513430.412
1974	419123203811.924
1975	391654800844.203
1976	428454580813.296
1977	435617403352.202
1978	450468734879.482
1979	501331296106.852
1980	486282806384.411
1981	427666009883.273
1982	410186122672.296
1983	445408760913.784
1984	452703015494.9
1985	451717307030.736
1986	477477136493.528
1987	482865679770.69
1988	522359741841.317
1989	566125186021.712
1990	615082036210.014
1991	657138927546.502
1992	655596502824.727
1993	613749908238.892
1994	634539081067.123
1995	642050011356.842
1996	622266765391.639
1997	634002583208.376
1998	666997016101.87
1999	699454937892.373
2000	717896939210.71
2001	693486432324.428
2002	634606149921.589
2003	637825110585.579
2004	620053731590.676
2005	612676925765.643
2006	666661698318.031
2007	714275605152.659
2008	719104059392.89
2009	593497246513.652
2010	670618350159.921
2011	732918799790.148
2012	672496079421.29
2013	682555361295.811
2014	703813963128.323
2015	704819889991.351
2016	737076631706.946
2017	760548267340.421
2018	799041763553.334