Year	current US$
1977	889999.985694885
1980	2519999.98092651
1981	1110000.01430511
1982	219999.998807907
1983	259999.990463257
1984	319999.99284744303
1985	529999.971389771
1986	790000.021457672
1987	259999.990463257
1988	140000.000596046
1989	250000
1990	569999.992847443
1991	800000.011920929
1992	689999.997615814
1993	579999.983310699
1994	759999.990463257
1995	740000.009536743
1996	720000.028610229
1997	720000.028610229
1998	1269999.98092651
1999	790000.021457672
2000	500000
2001	720000.028610229
2002	889999.985694885
2003	939999.997615814
2004	1070000.05245209
2005	990000.009536743
2006	930000.007152557
2007	1279999.97138977
2008	1080000.04291534
2009	949999.988079071
2010	1139999.98569489
2011	959999.978542328
2012	1410176.03874207
2013	1356451.98822021
2014	1034459.8293304399
2015	1038668.8709259
2016	720295.786857605
2017	671601.116657257
2018	1085360.05020142
2019	1606699.82433319
2020	2427279.94918823
2021	2262371.54006958
2022	2271359.92050171