Year	constant 2010 US$
1960	3561.74444484593
1961	3677.77340165651
1962	3745.54408404934
1963	3885.5214196477
1964	3904.05206633037
1965	3855.04053245623
1966	4191.92224058599
1967	4252.20754438695
1968	4332.5132134964
1969	4437.4517009998
1970	4471.89186876255
1971	4864.48310683212
1972	4763.51860814794
1973	4445.82859441178
1974	4465.19028098567
1975	3746.32051155124
1976	3848.06841644961
1977	4207.76108799998
1978	4448.58147448054
1979	4750.24301671005
1980	5055.1878773369
1981	5267.19376573755
1982	4492.90707367378
1983	4162.90704169215
1984	4231.17212600224
1985	4273.87460765049
1986	4496.57899261335
1987	4804.12474285211
1988	5073.85027586683
1989	5535.73242694756
1990	5698.37905035352
1991	6048.6731025677
1992	6670.92644234876
1993	7039.29411671284
1994	7206.1900769058
1995	7766.29229057061
1996	8219.37116349306
1997	8722.73365301984
1998	9049.44441387546
1999	8853.09895515605
2000	9161.30567207824
2001	9375.78049444148
2002	9517.74835521744
2003	9604.48589613504
2004	9948.11981106399
2005	10330.2177775047
2006	10350.5946695396
2007	10859.0938437399
2008	11645.4701894746
2009	11447.3198313495
2010	11904.1512562121
2011	12647.1689092408
2012	13398.3095611449
2013	13870.0522145709
2014	14094.9156071721
2015	14328.9276743371
2016	14410.1227263885
2017	14170.9277301308
2018	14539.9011915617