Year	current US$
1970	7120000.230148439
1971	2889999.967068438
1972	869999.9898672103
1973	6629999.883472921
1974	4879999.95052814
1975	12350000.189617278
1976	10179999.737069009
1977	7220000.075176363
1978	8340000.11160969
1979	14490000.402554922
1980	29009999.41490587
1981	21420000.391080946
1982	12689999.818801874
1983	25050000.209361326
1984	7160000.143572686
1985	8039999.89852309
1986	29330000.1174212
1987	73720000.29496852
1988	35120000.24318695
1989	52759999.718517095
1990	62059998.22169545
1991	42639999.79197973
1992	35519999.23959376
1993	37219999.864697434
1994	32729999.0952015
1995	31900000.737980057
1996	37029998.97859995
1997	38150000.3822148
1998	45210002.06470491
1999	54519998.239353314
2000	60319999.95186927
2001	34500000.26449557
2002	22689999.48166309
2003	50700001.61975619
2004	37289998.9001453
2005	75259999.93458393
2006	115279998.83890152
2007	139199998.2390553
2008	161389998.31490216
2009	119279999.82424086
2010	155060002.18726704
2011	102080000.87738039
2012	135409998.1281907
2013	162770000.6309897
2014	160170000.7170439
2015	113469999.31149179
2016	132270001.0389089
2017	168139997.85855395
2018	137429999.47071066
2019	232230001.42164546
2020	181370000.47415495
2021	234220004.21956182
2022	204399999.87185