Year	TDS, current US$
1970	9074000
1971	10296000
1972	9581000
1973	11845316.6
1974	12160214.3
1975	12801124.9
1976	13274303.7
1977	14480826.3
1978	16158199.7
1979	17540479.6
1980	22904355.1
1981	25774857.2
1982	22986573.4
1983	34433996.6
1984	35273318.1
1985	15886666.3
1986	103110626.8
1987	33777703
1988	39171701.5
1989	37595061.8
1990	23242735.4
1991	22157907.5
1992	24824194.7
1993	17225585.7
1994	2931549.2
1995	16936282.2
1996	259869.5
1997	298874.4
1998	2971086.9
1999	12373415.1
2000	47504602.9
2001	33700378.5
2002	24551689.3
2003	53478982.5
2004	51268327.3
2005	50610961.7
2006	27547414.5
2007	83113330.1
2008	65878639.4
2009	123136888.3
2010	102741822.3
2011	111199515.6
2012	128457955.1
2013	100497658.8
2014	103186307.6
2015	253214256.3
2016	38345812.7
2017	97619552.7
2018	25500782
2019	55790178.1
2020	26535997.5
2021	1595638578.6
2022	83356714.7