Year	constant 2010 US$
1975	1782533354.20617
1976	2098327465.81234
1977	2501060432.23248
1978	2691961196.20913
1979	3012520888.31219
1980	3205363712.09091
1981	3449215337.19282
1982	3704223246.59967
1983	3936167435.93069
1984	4370628201.49894
1985	4647287696.18184
1986	4880628742.65571
1987	5228960519.00846
1988	5692113023.86148
1989	6306162946.25593
1990	6934839278.01276
1991	7100696556.29139
1992	7821079072.84768
1993	7974983046.35762
1994	8619757086.09272
1995	9944211920.5298
1996	10162582781.457
1997	10616781456.9536
1998	11248913907.2848
1999	11845112582.7815
2000	12672450331.1258
2001	13072132450.3311
2002	13454582781.457
2003	13702251655.6291
2004	14284781456.9536
2005	15067403973.5099
2006	15899615894.0397
2007	16718635761.5894
2008	17610264900.6623
2009	17784715231.7881
2010	18215231788.0795
2011	18661947019.8676
2012	18523046357.6159
2013	17795430463.5762
2014	17713258278.1457
2015	17990980132.4503
2016	18694052980.1325
2017	19375523178.8079
2018	19934104635.7616