Year	current US$
1970	0
1971	29999.999329447703
1972	1510000.04447997
1973	5260000.19349158
1974	1679999.9922514
1975	3839999.92720783
1976	1079999.99262393
1977	2100000.0257045
1978	89999.9868124723
1979	1110000.01989305
1980	1069999.95931983
1981	3409999.88280237
1982	5190000.019967561
1983	6679999.97548759
1984	6370000.01221895
1985	8040000.09223819
1986	9830000.09134412
1987	12729999.817907799
1988	26409999.2122501
1989	25149999.249726497
1990	22880000.1069903
1991	41109999.4964898
1992	27450000.073760703
1993	17030000.1259893
1994	13099999.8208135
1995	18499999.7485429
1996	11230000.022798799
1997	13840000.0277907
1998	13670000.102371
1999	17859999.878332
2000	15730000.1718104
2001	15320000.108331399
2002	21559999.9427795
2003	24209999.4979799
2004	29739999.9257177
2005	28119999.5279312
2006	37300000.5967915
2007	43480000.5368888
2008	50110000.0087172
2009	45289999.5986372
2010	66099999.915808395
2011	68870000.02153221
2012	49229999.650269695
2013	48099999.2918223
2014	47019999.543204896
2015	25099999.8357147
2016	12760000.0854582
2017	7550000.07152557
2018	4769999.92877245
2019	4600000.0089407
2020	5540000.06616116
2021	5269999.94181097
2022	2929999.9549984923