Year	TDS, current US$
1970	233815808.6
1971	239195981.5
1972	244869707.9
1973	272803013.5
1974	315983620.3
1975	335712538.4
1976	663246798.1
1977	286135175.2
1978	693278508.8
1979	303547575.6
1980	281831992.3
1981	383974050.1
1982	363267942.2
1983	398979842.4
1984	443392291.7
1985	513258468.7
1986	677170292.3
1987	752017470.9
1988	737866763.1
1989	645221432.9
1990	664262654.9
1991	694757233.8
1992	684900714.4
1993	539510515.5
1994	586527936.5
1995	670012394.8
1996	659381873.5
1997	630976084.1
1998	492373532.7
1999	606534790.8
2000	709716865.2
2001	746315051
2002	854042407.2
2003	842200683.8
2004	857537523.6
2005	971106364.1
2006	832479239.1
2007	1302017111
2008	1177818214.5
2009	1493565788.9
2010	1191345924.3
2011	1650921177.4
2012	1807312216.2
2013	1210692403.8
2014	1574962012.1
2015	4067166032.5
2016	1897603125.6
2017	1399233692.8
2018	1266332529
2019	2830683981.5
2020	1614957752.8
2021	1344495198.9
2022	1390158496.5