Year	constant 2010 US$
1980	3179.5384579188
1981	2934.39772408758
1982	2831.97215191659
1983	2847.50175606134
1984	2912.66515023621
1985	2909.52891499335
1986	2890.01500652796
1987	2904.12954083143
1988	2976.63600395655
1989	2877.3382969972
1990	2685.77857401363
1991	2623.71399790911
1992	2390.80776712105
1993	1759.35310834534
1994	1726.3156873238
1995	1922.41619328126
1996	2113.75076631864
1997	2195.71885948871
1998	2225.68435703379
1999	2201.52946001159
2000	2195.63058208212
2001	2213.68116198694
2002	2433.80439286308
2003	2423.29399490108
2004	2597.45699523307
2005	2883.97821142556
2006	3102.65092800056
2007	3409.50346175619
2008	3652.15349820188
2009	3549.5778566281
2010	3587.88379824396
2011	3579.96008133817
2012	3748.44944481631
2013	3796.88262194857
2014	3843.19824098164
2015	3748.32062301759
2016	3530.30942264945
2017	3409.92928463039
2018	3229.61973975117