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	0
1992	750000
1993	0
1994	340000.00357627904
1995	0
1996	0
1997	900000.035762787
1998	829999.983310699
1999	1329999.9833107
2000	2179999.94754791
2001	3399999.9761581398
2002	3120000.09417534
2003	3939999.99761581
2004	4740000.009536739
2005	8450000.07748604
2006	13090000.0482798
2007	15049999.9076128
2008	15860000.1335144
2009	12209999.8742342
2010	10310000.0023842
2011	9889999.73237515
2012	10250000.122934598
2013	14810000.0098348
2014	13619999.922812
2015	13610000.2676249
2016	17999999.9403954
2017	14889999.9558926
2018	27269999.1837144
2019	22130000.0175834
2020	19900000.0208616
2021	24259999.7892976
2022	29530000.418424614