Year	current US$
1969	6069999.93696809
1970	5650000.12330711
1971	10370000.300929
1972	13220000.1776218
1973	20620000.2133846
1974	21359999.205917098
1975	39880000.7253885
1976	26659999.631345302
1977	50069999.7730553
1978	64309999.13811679
1979	96150000.8571893
1980	109599997.876212
1981	70520000.4894286
1982	64000000.018626496
1983	68070000.7863343
1984	94580000.4005432
1985	80369997.5349009
1986	108810001.19447699
1987	111000000.391155
1988	141839998.841286
1989	44640000.0043213
1990	65020000.9439141
1991	89120001.3551861
1992	109090000.748634
1993	71590000.9870529
1994	61890000.2837181
1995	69299999.2184341
1996	35659998.6553192
1997	35559999.8235703
1998	31499999.403953597
1999	19800000.358372897
2000	29580000.124871697
2001	22460000.1312792
2002	19170000.4916638
2003	20380000.069737397
2004	20959999.8481572
2005	29319999.650120698
2006	77499999.7019768
2007	17430000.629276
2008	23280000.0309944
2009	19829999.804496802
2010	19130000.3230572
2011	28689999.908208802
2012	18776964.4856453
2013	19384773.2641734
2014	9973020.13635635
2015	7564307.07126856
2016	10185232.881456599
2017	4939709.946513181
2018	9965005.99384308
2019	18715910.2112055
2020	16385129.772126699
2021	14941389.6501064
2022	13206856.109201906