Year	current US$
1970	0
1971	0
1972	5460000.02510846
1973	6509999.98673797
1974	9419999.99806285
1975	16620000.069961002
1976	17700000.0327826
1977	12810000.3562868
1978	12760000.2903491
1979	15200000.2358109
1980	13739999.8232722
1981	12859999.950975198
1982	11830000.1211464
1983	11979999.890550999
1984	10880000.190809399
1985	8980000.240728261
1986	9410000.13798475
1987	17399999.5272607
1988	10079999.797046201
1989	10500000.141561
1990	20360000.094398897
1991	10529999.8093396
1992	14880000.118166199
1993	18500000.3315508
1994	14410000.0075996
1995	21060000.0787526
1996	21269999.993965
1997	22919999.8024851
1998	18589999.761432398
1999	21150000.1978129
2000	14340000.046417098
2001	13949999.945238201
2002	18859999.941662
2003	28370000.4518032
2004	23560000.006109502
2005	33099999.8021871
2006	32320000.1306832
2007	41560000.3618747
2008	34569999.249652
2009	21699999.6099621
2010	28690000.1689792
2011	44679999.591782704
2012	45360001.0462105
2013	33549999.9709427
2014	53060000.1253188
2015	51439999.6101856
2016	56609999.7330457
2017	50980000.4828721
2018	66639999.33190639
2019	50890000.6115437
2020	60090000.1302361
2021	120099998.977035
2022	33209999.93197616