Year	current US$
1972	190000.0069290396
1973	9999.99977648258
1974	230000.004172325
1975	399999.9947845934
1976	510000.0072270636
1977	540000.0065565109
1978	199999.99739229685
1979	410000.0001490112
1980	779999.9881535771
1981	17339999.70182775
1982	5400000.00037253
1983	1179999.9643117152
1984	880000.0008195571
1985	1140000.0043213367
1986	1530000.0403076375
1987	1979999.9222159379
1988	1130000.043660401
1989	2760000.0798702217
1990	8860000.120475898
1991	11669999.95708466
1992	8279999.87453223
1993	6170000.119134784
1994	12229999.898001546
1995	12689999.969676135
1996	9319999.987259503
1997	13900000.097230084
1998	12899999.925866717
1999	17109999.930486064
2000	18360000.159591433
2001	13110000.085085627
2002	8740000.141784558
2003	9290000.112727284
2004	5540000.0344961975
2005	7290000.090375543
2006	6809999.86454844
2007	7199999.947100883
2008	9019999.938085675
2009	2399999.5533376923
2010	10120000.170543782
2011	5680000.087246302
2012	3529999.9378621564
2013	8679999.995976686
2014	3329999.9181181146
2015	4150000.0786036276
2016	4130000.0827759467
2017	4200000.038370493
2018	3019999.910145996
2019	3420000.0558048496
2020	3049999.9970197673
2021	3270000.04798174
2022	3219999.9894946786