Year	constant 2010 US$
1976	1404550194.91357
1977	1536615203.21867
1978	1558884989.54486
1979	1558884989.54486
1980	1415426139.63992
1981	1275074697.62011
1982	1173048004.8698
1983	1208285496.81711
1984	1317001160.18824
1985	1407697648.9024
1986	1801917062.22944
1987	2441597616.00942
1988	2927466029.90914
1989	2971328031.31773
1990	3307227102.19402
1991	3253549747.86384
1992	3344261541.71847
1993	3589410443.60303
1994	3803117817.65687
1995	3700758358.95133
1996	4114728677.33344
1997	4514090389.48174
1998	4841517914.75658
1999	5071350729.24215
2000	4967983217.49403
2001	5109046965.74259
2002	4947436124.67391
2003	4696324010.15802
2004	4960111729.35821
2005	5458154880.03785
2006	6145308488.72838
2007	6309227493.72454
2008	6397091622.71854
2009	5698272305.32912
2010	6224223957.58891
2011	6611926961.38578
2012	6703136999.45057
2013	6667765777.95398
2014	6905209434.69572
2015	7493603168.96177
2016	7689442747.32144
2017	7892846721.27431
2018	7834923828.70041