Year	current US$
1970	17220000.004395846
1971	11849999.917671086
1972	10940000.118687762
1973	18930000.031366948
1974	23280000.18186868
1975	33250000.424683098
1976	41490000.152960464
1977	45779999.46288767
1978	73949999.67515467
1979	67280000.42214994
1980	58950000.055134356
1981	54300000.61355532
1982	55529998.80164857
1983	64570001.27062197
1984	43379999.78289005
1985	48659998.59012669
1986	103579997.714609
1987	148320001.90764675
1988	80339999.54164025
1989	97390000.12725604
1990	116929998.77408148
1991	117369999.67880544
1992	141009998.27682972
1993	108229999.69124791
1994	145890000.00059605
1995	175690000.79669067
1996	263239998.86214745
1997	283980000.93922013
1998	266280002.11901957
1999	264629997.60359538
2000	254759998.50779772
2001	268610001.95518136
2002	241739997.09449708
2003	187060003.0124186
2004	244080000.65945077
2005	246360002.10233036
2006	228319999.60727984
2007	226479999.2740155
2008	291389995.11115247
2009	223190000.269562
2010	251660002.66559437
2011	215159999.2588164
2012	130240005.22308065
2013	111289998.75672154
2014	120249999.85843903
2015	107529999.61934984
2016	106220000.40113911
2017	144249999.16367242
2018	136640000.23901466
2019	75139999.36729674
2020	73679999.57315622
2021	111429998.35312364
2022	266140001.88373