Year	TDS, current US$
1970	191986000
1971	144284000
1972	154563000
1973	166588000
1974	171191000
1975	170893000
1976	210991000
1977	222807000
1978	255179057.3
1979	285265886.1
1980	280849028.4
1981	287319574.3
1982	309464613.20000005
1983	375460514
1984	438951993.9
1985	510144562.70000005
1986	750437285.0999999
1987	953365376.4
1988	943358108.4000001
1989	1181359799.3
1990	1625423157.8000002
1991	1825481792.8000002
1992	2152950964.8
1993	2559288226.2
1994	3011265289.2
1995	3412984884.5
1996	3035265251.2
1997	3167981627.7999997
1998	3083927162.6
1999	3503922274.2
2000	3902561518.5
2001	3794585540.3
2002	7647064431.199999
2003	8091238324.599999
2004	5165761366.7
2005	3052604382.6
2006	3612145594.9999995
2007	3837197535.6000004
2008	4409571554.7
2009	4251943988.4000006
2010	4239102597.2000003
2011	4746347927.8
2012	5051281535.5
2013	5911930234.3
2014	6124158715.1
2015	6265030149.799999
2016	7014129304.699999
2017	7489064153.1
2018	8410404821.400001
2019	9934958093.1
2020	10323204288.099998
2021	9899569125.6
2022	10443986902