Year	current US$
1970	13020000.090822581
1971	11640000.022947792
1972	14480000.03397465
1973	23719999.95969237
1974	34060000.17933543
1975	40739999.10987917
1976	41630000.07905068
1977	62549998.19770457
1978	66780000.06452202
1979	80319999.35954806
1980	100189997.65813342
1981	64509998.55622649
1982	78639999.42503871
1983	92490001.43073499
1984	88430000.74848539
1985	78320000.05058947
1986	148810000.333935
1987	159049999.0340322
1988	210929997.31004238
1989	209980000.5629658
1990	226150002.96011576
1991	252119998.40289345
1992	271819997.87315726
1993	288740001.23701996
1994	279420000.9703637
1995	323000002.430752
1996	417479999.89427626
1997	348390001.2038648
1998	392359996.48086727
1999	407870000.14446676
2000	380700000.38854784
2001	410379996.8268721
2002	422049998.2032925
2003	455980002.65471643
2004	521520000.3925712
2005	575440004.840493
2006	624059987.7070634
2007	748909993.3281537
2008	750300002.675504
2009	818480002.6081496
2010	810160003.7664167
2011	813480003.8672979
2012	675690010.173246
2013	572159994.5332856
2014	555949999.0642071
2015	389199998.423457
2016	407869996.74141407
2017	401459997.98923725
2018	401880003.04996955
2019	420999999.3592501
2020	415740005.9420615
2021	543630002.6718528
2022	331129994.40729624