Year	current US$
1970	16199999.965727333
1971	17950000.220909707
1972	21179999.839514483
1973	18770000.09082258
1974	31549999.902024873
1975	40350000.37029384
1976	36299999.98956919
1977	46439999.60832297
1978	69639999.85903502
1979	119579999.24384065
1980	159530000.11108813
1981	128189999.12776056
1982	105849999.8543412
1983	124390000.26322904
1984	125000000.58114532
1985	148540000.17791986
1986	160799998.9520758
1987	184880000.62480575
1988	198260000.3555417
1989	241480000.25004134
1990	288709999.33220446
1991	296429999.5601177
1992	383660000.9799006
1993	389339999.1765617
1994	419199997.5442884
1995	392839999.25851846
1996	369340001.5234949
1997	212259999.75204462
1998	196499999.9999999
1999	202459999.32289118
2000	220700001.5377998
2001	239379998.56472015
2002	220709998.60763556
2003	251439998.626709
2004	265980001.38998038
2005	320860000.4315376
2006	369140000.9393693
2007	540080002.6655195
2008	577819994.9264525
2009	587050001.8000603
2010	630709999.1142751
2011	604330003.142357
2012	521140583.6939812
2013	609960089.981556
2014	647154950.916767
2015	672064730.0573181
2016	680854737.3758631
2017	706274309.039116
2018	709660648.76318
2019	743412996.4709283
2020	715232002.0198821
2021	658982999.801636
2022	652300003.5285952