Year	current US$
1974	410000.013187528
1975	199999.999254942
1976	519999.99396503007
1977	760000.009089708
1978	2330000.01870096
1979	3639999.92981553
1980	5189999.91007149
1981	5280000.12040138
1982	7539999.87989664
1983	7829999.99448657
1984	7689999.9473244
1985	9050000.13113022
1986	10850000.0201166
1987	12929999.7277558
1988	11380000.0045449
1989	11000000.083819
1990	12529999.967664499
1991	17800000.4235655
1992	16039999.859407501
1993	20420000.096783
1994	25279999.546706703
1995	36860000.256449
1996	41769999.990239695
1997	45970000.1571327
1998	44009999.6309727
1999	45109999.6939301
2000	50059999.970719196
2001	55429999.2155284
2002	83080000.6110221
2003	99070000.7453561
2004	117460001.254454
2005	140789998.888969
2006	176759999.487549
2007	229390000.18127298
2008	259110000.995919
2009	193629998.12886098
2010	180799999.622628
2011	169880001.19105002
2012	151839999.319986
2013	137130001.401529
2014	133560000.50716099
2015	102110001.23806301
2016	91860000.1633167
2017	89779999.0121275
2018	92049998.24240799
2019	87510000.2381951
2020	89130000.8222461
2021	92139998.5607713
2022	148049999.55929813