Year	constant 2010 US$
1960	2185116065.60131
1961	2507788728.45896
1962	2694599217.24474
1963	2858765930.71952
1964	2988967099.55027
1965	3238047760.73506
1966	3384019101.66093
1967	3523276660.31173
1968	3611668656.19117
1969	3903596598.83735
1970	4242403104.80399
1971	4677619823.51501
1972	5207920211.5722
1973	5738213230.02661
1974	8004066949.73228
1975	9540056594.85938
1976	12938733999.2861
1977	11310770691.4855
1978	8590620139.78418
1979	8631374495.28825
1980	8851728061.99458
1981	9302752753.63112
1982	9014598089.52999
1983	9520158446.65818
1984	10235017844.0222
1985	9996240063.52899
1986	9915910504.90297
1987	8215724303.74084
1988	9271063112.44527
1989	10063304194.7561
1990	10585814826.4062
1991	11232873126.3755
1992	10885760985.9173
1993	11315373531.2553
1994	11735485609.8244
1995	12319190798.347
1996	12765767503.6889
1997	13498314143.8215
1998	13967763046.8196
1999	12720075459.928
2000	12480560713.2671
2001	12747049816.8665
2002	12715305434.8118
2003	13001060309.9028
2004	13090708218.7965
2005	13441042188.4756
2006	13063808807.6346
2007	13848696552.9606
2008	13390522031.7449
2009	13407974049.0581
2010	14358584300.3006
2011	15376859682.3653
2012	16184310411.783
2013	17096894961.6772
2014	17834619899.8015
2015	18526406863.2095
2016	18913875956.0273
2017	19004617596.7814
2018	19236683662.1516