Year	constant 2010 US$
1960	2911.05552478196
1961	2857.53813718226
1962	2903.42626092428
1963	2992.61907855022
1964	2994.57347447329
1965	3132.24603374888
1966	3244.14091711758
1967	3323.10675651863
1968	3499.57269030161
1969	3588.68446766119
1970	3754.57439771802
1971	3906.14275245872
1972	4121.0624525547
1973	4331.05284566329
1974	4459.90005359189
1975	4440.60859023171
1976	4566.79781364226
1977	4845.05750896201
1978	5013.85786251217
1979	5122.37026692554
1980	5023.73599042692
1981	4778.92270055992
1982	4311.76084662656
1983	4316.04670198147
1984	4537.76621257316
1985	4449.44883757602
1986	4572.91633357759
1987	4666.89329477503
1988	4703.04144567015
1989	4841.82856941024
1990	4884.60281408363
1991	4866.33346495194
1992	5177.348545883
1993	5403.26897953067
1994	5504.47854099706
1995	5591.19512718981
1996	5525.09753209666
1997	5696.76858478553
1998	5957.30027701254
1999	6062.26244630308
2000	6172.40871859972
2001	6274.31644926203
2002	6375.20422103903
2003	6545.73710003946
2004	6730.83178418895
2005	6892.92357893302
2006	7289.90434511818
2007	7779.32537779894
2008	8034.33038805147
2009	7854.95282987345
2010	8141.91359856475
2011	8390.47955730589
2012	8689.96567123724
2013	8785.74189377566
2014	8993.52652298471
2015	9219.3902349299
2016	9509.73874043803
2017	9732.26994718134
2018	9892.64111990341