Year	constant 2010 US$
1970	17244.9271223252
1971	17958.5342797484
1972	19001.6185924731
1973	20025.6240288069
1974	20402.8629118785
1975	20448.7037777833
1976	21414.4550606474
1977	22396.9945731499
1978	22499.6457622604
1979	23685.1993649873
1980	23862.5041733379
1981	23612.2407087104
1982	24041.1935307271
1983	24942.6399343933
1984	24989.279504592
1985	25525.3617166881
1986	26200.6800536445
1987	26673.9357700755
1988	27773.2661645577
1989	28731.8569546401
1990	29654.1000631833
1991	30308.2247748059
1992	30588.580690405
1993	30261.6066897171
1994	30863.0781678836
1995	31451.1666203295
1996	32103.8278238235
1997	32565.9938702921
1998	33606.9860913198
1999	34219.9198088681
2000	35313.7870755508
2001	35377.2657518648
2002	36021.5856371721
2003	36181.7000744107
2004	36974.9889146864
2005	37428.7029492232
2006	38856.8192554351
2007	39977.9635172851
2008	40541.6668794677
2009	38364.5438416693
2010	38977.2071273785
2011	39513.7129626649
2012	39155.6771554193
2013	38783.3441010288
2014	38893.1558773323
2015	38583.266509027
2016	39431.5701114256
2017	39879.7351693854