Year	TDS, current US$
1970	63090000
1971	60793345.79999998
1972	54252429
1973	30418762.400000006
1974	29585805.3
1975	97030399.5
1976	136351764.4
1977	127582088.1
1978	185485591.8
1979	290192407.4
1980	486622278.90000004
1981	513936648.10000014
1982	560859576.9
1983	737854991.8999999
1984	985650335.2999998
1985	1164231088.8000002
1986	1685158748.7
1987	1539481858.6000001
1988	1492651899
1989	1591844914.1999998
1990	1185069953.6999998
1991	841026952.0000001
1992	715066988.4000001
1993	592361266.3
1994	635613543.6999998
1995	2929781950.7
1996	719149230.9000001
1997	1163269441.3999999
1998	1165488144.6000001
1999	691980374.1999999
2000	589470669.2999998
2001	552685596.6000001
2002	942749581.6999998
2003	510334260.00000006
2004	875552293.7000003
2005	840231033
2006	743571534.2000002
2007	391667210.00000006
2008	1200098914.8000002
2009	444634676.3999999
2010	199691351.20000002
2011	160048970.49999997
2012	250670944.99999997
2013	494250874.80000013
2014	873318729
2015	1103903735.6000001
2016	967983933.4999998
2017	955014882.0000001
2018	1067662631.9000001
2019	1137704270.2
2020	1390410579.1
2021	2831653530.600001
2022	1454200642.7000005