Year	TDS, current US$
1970	7344000
1971	8625000
1972	10384000
1973	12822000
1974	14465000
1975	14985000
1976	18312000
1977	22460000
1978	21451000
1979	29958000
1980	50222000
1981	67036447.8
1982	48191676.8
1983	37182233.4
1984	27652176.9
1985	17068704
1986	20333000
1987	40332000
1988	24200000
1989	8197000
1990	6455000
1991	357413242.6
1992	59174000
1993	65299000
1994	124651160.3
1995	82563517.1
1996	87172244.6
1997	142241711.1
1998	88476175.2
1999	87778920.3
2000	101171054.7
2001	61918205.6
2002	27898234.3
2003	35028746.5
2004	35359169.3
2005	49616046.9
2006	60961099.1
2007	197970838
2008	45672394.7
2009	49942848.2
2010	44667699.3
2011	59406256.6
2012	67023621.3
2013	75292769.2
2014	92109626.3
2015	107150974.9
2016	136966312.7
2017	173537759
2018	188255042.5
2019	247595264.5
2020	298558661.7
2021	317443695.5
2022	368737477.9