Year	constant 2010 US$
1980	2581.23220526003
1981	2866.17959500555
1982	2998.00877684828
1983	3111.67811176718
1984	3270.773906139
1985	3262.79445014055
1986	3275.12582614483
1987	3486.31888864581
1988	3639.13620258211
1989	3473.78943186159
1990	3435.37785131668
1991	2848.09827428345
1992	2841.39139607067
1993	2693.14423827114
1994	2841.68690318883
1995	2124.41854679562
1996	2446.43718987629
1997	2900.54238600376
1998	3092.96841964404
1999	2784.11407154459
2000	3034.87241750605
2001	3330.27014344147
2002	3685.22635739205
2003	3888.71882242921
2004	4204.53793285432
2005	4448.89658762568
2006	4698.83843153024
2007	4918.73017143037
2008	5535.02964156135
2009	5566.04338672532
2010	5580.3422267071
2011	5824.61196033896
2012	5942.59448362431
2013	5961.48697267716
2014	6176.55069517541
2015	6437.63280640576
2016	7032.75567400443
2017	7505.66303981996