Year	constant 2010 US$
1960	2231.21223945539
1961	2528.29098508622
1962	2457.01257182774
1963	2547.69743464858
1964	2587.25705624349
1965	2983.89494883454
1966	2894.12502526712
1967	2954.7169331241
1968	3043.64463653765
1969	3089.77555307609
1970	3302.32097053229
1971	3254.12054078327
1972	3320.19668563494
1973	3373.66791856276
1974	3458.81538970534
1975	3446.25503253103
1976	3498.84177354051
1977	3873.36019969703
1978	4087.08825273008
1979	4074.31034036499
1980	3894.060804707
1981	3466.60620855032
1982	3049.67974836118
1983	3133.91087913314
1984	3271.23935293513
1985	3321.59007030635
1986	3404.56654577847
1987	3440.22194497946
1988	3423.88318043608
1989	3506.9499751017
1990	3558.10832348959
1991	3433.27901586452
1992	3665.72414597773
1993	3908.72657885799
1994	4005.13250962249
1995	3990.67322356707
1996	3966.27837825125
1997	4060.53779930041
1998	4149.30804549184
1999	4120.35297061143
2000	4077.94519464325
2001	4101.43781046005
2002	4196.42186310024
2003	4296.59286249196
2004	4342.36848886769
2005	4486.73896590407
2006	4650.33126093105
2007	4938.01906656675
2008	5157.52708422138
2009	5139.96035743839
2010	5324.70058630433
2011	5588.4736188422
2012	5862.17909017708
2013	5964.6789242193
2014	6143.195337252
2015	6357.62113284973
2016	6539.86924959311
2017	6653.59935652128
2018	6731.90872756772