Year	constant 2010 US$
1970	1218864613.29196
1971	1447569244.72024
1972	1492999293.21711
1973	1406545076.30144
1974	1640587296.57766
1975	1555247396.23849
1976	1375523263.82561
1977	1588650222.48103
1978	1644642363.41087
1979	1663276894.42264
1980	1674350182.02993
1981	1838092486.31997
1982	1999653276.31655
1983	1869572329.67199
1984	2268227575.20126
1985	2238282384.21429
1986	2221438192.05825
1987	2008415606.1219
1988	2035122042.2914
1989	2325150002.44485
1990	2458050968.38147
1991	2425926041.17121
1992	2492095144.53488
1993	3098482861.62613
1994	3201418010.9618
1995	3369894604.89058
1996	3461611553.89998
1997	3578036032.59203
1998	3632034423.43852
1999	3587843512.0442
2000	3841888132.71516
2001	4008373643.66585
2002	3815572694.17638
2003	3820612456.27059
2004	3918251979.21436
2005	3676593928.7794
2006	3837270484.47967
2007	4083525735.34315
2008	3077168956.67287
2009	2972032023.04379
2010	3870088859.05682
2011	3454726510.58174
2012	3850296448.74935
2013	3672038157.38588
2014	4299887003.6406
2015	3761524161.75104
2016	3974460155.67004
2017	4440078590.70158
2018	3846646070.68718