Year	TDS, current US$
1970	94410000
1971	97787322.89999998
1972	112977948
1973	86577079.59999998
1974	99672322.4
1975	170282470.4
1976	253949244.79999998
1977	225686039.29999998
1978	327007173.3
1979	451358862.99999994
1980	713413035.1999999
1981	679183403.8000001
1982	692060757
1983	798336246.8
1984	1025937576.9999999
1985	1214459970.1
1986	1803799458.6000004
1987	1708243650.0000002
1988	1587493287.6000001
1989	1630066589.4999998
1990	1459273745.9999995
1991	985983633.1000004
1992	714642108.0000002
1993	604903355
1994	667982084.6999998
1995	2998471804.7
1996	814943430
1997	835062902.4000001
1998	801983386.3000001
1999	813636076.8999997
2000	770734986.3000001
2001	775555487.4000002
2002	1205860511.3999996
2003	726490598.9
2004	1029918865.2000003
2005	788992917.4999998
2006	665401647.1
2007	508372124.3999999
2008	1400007444.0000007
2009	650011616.6000001
2010	310269531.8
2011	358945935.1999999
2012	547393344.8
2013	876373322.9999999
2014	1224901389.2999995
2015	1339847283.3000002
2016	1322247327.8
2017	1219853044.1
2018	1114864527.6000001
2019	1206305819.4
2020	1567039627.9
2021	2960814450.7
2022	1402237069.7000003