Year	current US$
1970	1559999.981895089
1971	819999.9984353778
1972	1179999.9885261045
1973	1299999.9970197666
1974	1640000.006183983
1975	1410000.003874301
1976	4680000.130087132
1977	3840000.007301568
1978	4220000.050961968
1979	5269999.966025352
1980	8380000.1032650415
1981	15129999.95797873
1982	16159999.784082158
1983	16720000.125467781
1984	16830000.0000745
1985	14180000.15616417
1986	11719999.963417653
1987	20869999.533519164
1988	17519999.57859516
1989	16710000.030696388
1990	16619999.710470438
1991	67040001.04591245
1992	39939999.76851043
1993	37920000.51960347
1994	31350000.269711036
1995	35410000.01877543
1996	32430000.066757225
1997	23380000.311881296
1998	37319999.36327336
1999	31289999.967440967
2000	30660000.192001477
2001	22999999.919906244
2002	27749999.772757277
2003	41339999.50438737
2004	38929999.37944112
2005	211270003.8850308
2006	64880000.51677219
2007	57369999.64527788
2008	153830002.5425852
2009	75139999.00221826
2010	79499998.45027918
2011	127050001.06990334
2012	131740000.2181531
2013	173329999.62568283
2014	196899997.35914165
2015	235520000.293851
2016	193599998.62313262
2017	202730001.74760818
2018	197400002.09212303
2019	226209997.14918453
2020	249090000.45061117
2021	257540000.64730632
2022	256299996.7522918