Year	constant 2010 US$
1980	2199.23514484594
1981	2179.10680544301
1982	2079.30168240103
1983	1973.60845454934
1984	1939.85057059576
1985	1891.20794206685
1986	1961.82468654983
1987	2121.12066036695
1988	2272.36005650659
1989	2488.52351363834
1990	2731.95364624738
1991	2986.76846538643
1992	3267.65022049441
1993	3400.45401666985
1994	3295.60107310515
1995	3255.8127773239
1996	3184.75422823459
1997	3202.16531160525
1998	3159.09601167131
1999	3284.66920226421
2000	3554.43374122051
2001	3568.77558616183
2002	3663.82481345652
2003	3842.22145797825
2004	3842.08161498939
2005	3871.99027780322
2006	3945.22117650074
2007	3796.16206597603
2008	3843.21136119752
2009	3988.0935964137
2010	3901.93168849856
2011	4017.02218303642
2012	3992.63352372284
2013	3944.02651104826
2014	3971.43494926385
2015	4129.44654675278
2016	3991.35797356362
2017	3874.86949069466