Year	current US$
1970	19990000.061690815
1971	29580000.41916966
1972	38469999.37668443
1973	48499999.96460975
1974	82099999.53210354
1975	63350001.15633019
1976	56940000.900998645
1977	66749999.463558234
1978	111930000.34987918
1979	150560000.08061522
1980	172859995.9611893
1981	242980000.13828284
1982	182779998.7792969
1983	182249997.49660495
1984	134149998.06880948
1985	188890001.17778778
1986	188319997.31063825
1987	209209998.96526334
1988	255609997.0340728
1989	295179999.1130828
1990	320300000.04917395
1991	836570021.5697286
1992	426339999.4969368
1993	651959994.7929388
1994	720810007.5684484
1995	523230006.9015475
1996	927269989.9673467
1997	977440007.258206
1998	1106720017.9677458
1999	824800007.1793804
2000	627060001.373291
2001	857539995.1934819
2002	757180000.185966
2003	1125480000.0190737
2004	1277810000.4196162
2005	1313140008.1515322
2006	1913300022.0656385
2007	2014180004.4868143
2008	2201239967.3461933
2009	1908810016.6320815
2010	1733390026.569367
2011	2173359992.980957
2012	3030300004.005432
2013	2558810020.3275685
2014	2957440015.7928476
2015	2304910019.8745728
2016	3101959988.5940576
2017	3061929983.139038
2018	3119370002.746582
2019	3046450030.326843
2020	4174370025.8731847
2021	5272450104.713448
2022	2859920011.5203857