Year	current US$
1970	2970000.0248849415
1971	3309999.994933608
1972	3680000.02205372
1973	4939999.952912335
1974	6250000.0968575515
1975	8359999.895095815
1976	7060000.00983476
1977	4130000.0399351167
1978	5569999.99657273
1979	7620000.138878832
1980	11619999.900460254
1981	12710000.157356262
1982	11789999.961853024
1983	10980000.197887417
1984	8370000.064373016
1985	7860000.04410743
1986	11359999.902546406
1987	7909999.9554455215
1988	10729999.974370008
1989	11329999.95350838
1990	8520000.003278254
1991	8539999.902248377
1992	6809999.864548442
1993	4929999.893531203
1994	4659999.962896109
1995	1829999.9870359916
1996	2310000.028461217
1997	1829999.9982118548
1998	2690000.0181049104
1999	1389999.995008115
2000	1280000.0365823465
2001	1649999.9985098855
2002	1770000.001415608
2003	1949999.9806284904
2004	2860000.018030406
2005	3300000.0044703525
2006	2679999.9624490743
2007	2789999.9506771546
2008	1869999.9898672102
2009	3269999.9697506423
2010	3730000.0190734863
2011	2340000.02592802
2012	2142467.7222967143
2013	2086487.9935979845
2014	1614088.518545032
2015	1314460.8917209557
2016	1847310.528159142
2017	1492366.6007816782
2018	836169.8575317856
2019	1349170.003086329
2020	1695817.1948790543
2021	1594661.7908775797
2022	2041911.777108907