Year	current US$
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	0
1967	0
1968	0
1969	0
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0
1991	2200000.04768372
1992	0
1993	0
1994	0
1995	0
1996	0
1997	500000
1998	319999.99284744303
1999	0
2000	0
2001	0
2002	0
2003	1190000.0572204601
2004	1539999.96185303
2005	1100000.02384186
2006	0
2007	869999.974966049
2008	2010000.0500678997
2009	1440000.0218302
2010	1050000.01937151
2011	970000.0174343591
2012	1369999.96006489
2013	2359999.95470047
2014	2409999.9666214
2015	2980000.00230968
2016	5849999.85806644
2017	3820000.0375509304
2018	4689999.8895824
2019	3800000.01192093
2020	3280000.0086426698
2021	3689999.97153878
2022	3299999.980255963