Year	constant 2010 US$
1976	2026.49183354588
1977	2123.58345757739
1978	2498.89432585524
1979	2654.09099209876
1980	3050.64638915268
1981	3121.52829483995
1982	3218.1983055448
1983	3112.34073249857
1984	3162.09722536602
1985	3122.26669874569
1986	3192.2912768599
1987	3117.75151292129
1988	2875.3208744479
1989	2370.98803106588
1990	2291.76186887794
1991	2149.10912704992
1992	2462.67146167314
1993	2467.61911085393
1994	2476.48991725791
1995	2557.70592433828
1996	2528.82774539854
1997	2592.04645690346
1998	2651.62952878485
1999	2689.28114970962
2000	2849.82253461852
2001	2964.61589924658
2002	3041.33057276573
2003	3116.78375741656
2004	3317.99166918873
2005	3472.46742297618
2006	3625.47352486756
2007	3790.47511636734
2008	3829.81369255475
2009	3831.16727362656
2010	3626.85242403856
2011	3523.45347871529
2012	3413.74733473905
2013	3341.6180125169
2014	3286.15677796458
2015	3237.76744235047
2016	3216.54552977887
2017	3216.60681758954
2018	3222.18500543503