Year	current US$
1977	939999.986439943
1979	0
1980	2699999.98807907
1981	1320000.0077486
1982	379999.99523162795
1983	379999.987781048
1984	469999.998807907
1985	649999.968707561
1986	970000.028610229
1987	319999.989122152
1988	499999.992549419
1989	629999.995231628
1990	1159999.98897314
1991	1409999.99642372
1992	1649999.9817460799
1993	3239999.99649823
1994	4699999.9694526205
1995	3189999.97712672
1996	6749999.97019768
1997	8550000.00074506
1998	9370000.04574656
1999	7059999.93905425
2000	4860000.00499189
2001	8969999.98763204
2002	9589999.96446073
2003	8610000.04410744
2004	7889999.98569489
2005	7989999.97973442
2006	8370000.014081601
2007	8989999.92012978
2008	10809999.9725819
2009	9910000.01877546
2010	11489999.9499321
2011	10389999.9260902
2012	11023150.0882655
2013	10760307.9080582
2014	10671041.3098335
2015	10008602.7085781
2016	8409343.80888939
2017	8720026.07584
2018	10589880.0194263
2019	15716051.7573357
2020	19357490.0329113
2021	18414293.915033303
2022	17186069.846153267