Year	current US$
1970	4400000.095
1971	4607883.93
1972	5100764.275
1973	6380088.329
1974	8133522.986999999
1975	11840063.094999999
1976	101092534.542
1977	99416663.53
1978	92716664.907
1979	119616667.871
1980	125992593.34709999
1981	138011111.259
1982	139966665.17499998
1983	115849996.56840001
1984	132784587.984
1985	206874022.719
1986	226603705.3296
1987	264975927.359
1988	302261512.27400005
1989	361063725.468
1990	384393789.491
1991	289285735.30300003
1992	324093971.24799997
1993	426977761.228
1994	728348661.506
1995	835520241.3457574
1996	920372549.1547261
1997	962803594.032489
1998	1027567528.6815004
1999	1095529867.2349627
2000	1204913197.8307528
2001	1399024183.6989772
2002	1662530245.5825949
2003	1880931127.8795395
2004	2176321832.045501
2005	2387216362.685441
2006	2580156625.0022926
2007	2924464854.3053823
2008	2907071566.52818
2009	2653834926.2276416
2010	2851999260.724246
2011	3111429541.7603197
2012	3221540302.0365663
2013	3130806412.888197
2014	3244745756.586583
2015	3341906097.0213785
2016	3325083978.647409
2017	3421399041.6673765
2018	3488485356.971357
2019	3677623836.3522143
2020	4362391538.50008
2021	5227694876.222919
2022	5181630360.783411