Year	TDS, current US$
1970	28400000
1971	2789000
1972	17241000
1973	49301000
1974	30015000
1975	49213000
1976	96980267
1977	111082347.5
1978	137120146.9
1979	134835316.6
1980	165927137.7
1981	197712700.5
1982	177050202.1
1983	141399592.5
1984	200823474
1985	286979164.6
1986	440815955
1987	485946862.9
1988	344866775.9
1989	274404521.9
1990	212857190.8
1991	136143723.7
1992	196785148.3
1993	164181922.3
1994	97013827.9
1995	218916106.2
1996	383121938.3
1997	352863449.2
1998	192158077.6
1999	288646862.9
2000	346614099.2
2001	231223839.9
2002	304490554.8
2003	616038272.4
2004	593861313.1
2005	263140954.4
2006	126889302.1
2007	168350840.2
2008	193042196.9
2009	294467395
2010	394102030.1
2011	449406594.1
2012	2413987477.2
2013	3711510919.5
2014	2025249794.3
2015	463293537.4
2016	66601874.1
2017	104967780.9
2018	345032729.1
2019	732043438.8
2020	1107133158.4
2021	1186170381.8
2022	1216633959.6