Year	current US$
1970	853375977613.3176
1971	959026015126.7081
1972	1146319838693.737
1973	1453012396601.0264
1974	1624960189398.2703
1975	1891482612164.1116
1976	1963126247566.054
1977	2212921703216.9253
1978	2704673865513.473
1979	3293357624331.8135
1980	3702969250433.945
1981	3256947418988.825
1982	3118997725079.585
1983	3025637034760.866
1984	2909989715738.297
1985	3013249655384.71
1986	4147411021706.48
1987	5123331050725.891
1988	5717003948687.693
1989	5830993417826.003
1990	7211478730557.422
1991	7463577632135.54
1992	8130987960448.904
1993	7418914209702.684
1994	7811957712776.976
1995	8972574690789.033
1996	9206569404616.598
1997	8774102572662.79
1998	9093065974323.912
1999	9008493621429.086
2000	8460471458664.864
2001	8505808795378.874
2002	9278177601033.098
2003	11290827063931.566
2004	13201563669614.172
2005	14052549540515.5
2006	15175762282087.645
2007	17660392184087.516
2008	19152496517880.37
2009	16853756565406.957
2010	17358203963855.197
2011	19173643693935.02
2012	18434206605192.195
2013	19257770715055.04
2014	19546445349592.793
2015	16849189685974.709
2016	16809215039168.111
2017	17830438667717.418
2018	19054804854421.14
2019	18741891787797.773
2020	17982356496559.977
2021	20288249832237.066