Year	current US$
1970	460000.0046193596
1971	480000.00417232513
1972	360000.00126659847
1973	460000.0027567141
1974	1059999.9949336043
1975	1829999.9907612796
1976	2139999.963343144
1977	2019999.9846518037
1978	3060000.021010635
1979	5089999.977499242
1980	5240000.016987323
1981	3910000.003874303
1982	3739999.994635582
1983	5010000.016540295
1984	5000000.044703488
1985	4730000.011622901
1986	4839999.996125698
1987	7320000.024512411
1988	7639999.991282817
1989	10699999.93592501
1990	16559999.871999018
1991	16069999.963045118
1992	17819999.873638146
1993	21169999.837875362
1994	20030000.32901766
1995	19500000.149011616
1996	17890000.013634562
1997	17020000.297576196
1998	17320000.071078554
1999	13879999.93190169
2000	10910000.05602836
2001	12869999.945163723
2002	13710000.067949295
2003	13429999.858140945
2004	13630000.11444091
2005	14850000.083446488
2006	15660000.08583069
2007	21609999.895095825
2008	15360000.073909767
2009	18880000.05483627
2010	16280000.030994423
2011	16550000.011920942
2012	13198676.258325573
2013	16889309.40628051
2014	19480582.952499405
2015	20854275.4650116
2016	21954621.37460709
2017	22146900.236606587
2018	21249189.078807835
2019	22934000.25367739
2020	21985000.312328335
2021	18815000.35524369
2022	18004999.935626984