Year	current US$
1970	31289999.924600128
1971	24159999.907016717
1972	8160000.111907736
1973	19560000.099241767
1974	12689999.530091839
1975	29440000.658854857
1976	11899999.929592017
1977	16880000.278353695
1978	15580000.070855014
1979	19990000.14178455
1980	40690000.3999472
1981	83379999.66368076
1982	148260000.39651984
1983	218579998.75955284
1984	327889998.85320723
1985	401699998.0024994
1986	853639988.6459118
1987	1063240006.4840918
1988	1287530005.5779514
1989	869899987.859651
1990	981170012.585818
1991	568369999.6992948
1992	675180008.8472662
1993	562169992.8417802
1994	457820005.161688
1995	317200002.7503818
1996	260250002.49966964
1997	244909998.8173694
1998	517569997.1746655
1999	166030000.71272263
2000	252109995.94442552
2001	196940000.82276773
2002	776359992.8412585
2003	748130007.5873731
2004	356990001.1997669
2005	409599998.4424561
2006	299769998.78883326
2007	361410005.83767897
2008	462589995.5388161
2009	466500009.54046845
2010	295409998.60316515
2011	808080014.7559499
2012	157920000.64440078
2013	191070001.21846795
2014	201410000.21807837
2015	299539999.00631577
2016	320629999.09743613
2017	352339997.96956766
2018	393999998.17274535
2019	297769999.18185186
2020	281900002.77198845
2021	945110026.1956457
2022	421829994.56673867