Year	TDS, current US$
1970	30550000
1971	62203000
1972	98062000
1973	30776000
1974	31055000
1975	40976000
1976	30082000
1977	53744584.400000006
1978	79739622.10000001
1979	151269786.3
1980	264996155.20000002
1981	199886605.3
1982	146359310.60000002
1983	115173969.39999999
1984	165853171.4
1985	315821639.79999995
1986	529177093.70000005
1987	528141087.59999996
1988	448862083.79999995
1989	456800372.3
1990	576874609.3
1991	546600185.7
1992	541085891.1
1993	644928305
1994	479699480.79999995
1995	501386028.59999996
1996	445213583.3
1997	568152998.6
1998	620971278.0000001
1999	628617836.8000001
2000	408751915.20000005
2001	402380521.90000004
2002	475068194.3000001
2003	610583894.4
2004	569313914.2999998
2005	808017681.5999999
2006	208218893.7
2007	216283101.60000002
2008	151454337.60000002
2009	85301927.9
2010	81024926.5
2011	77558891.1
2012	51912515.7
2013	36867531.6
2014	33021599.599999998
2015	694349176.1000001
2016	444391979.59999996
2017	982151966.8
2018	1492162971.3
2019	2016200610.5000002
2020	2114394546.1999998
2021	3151521253.6000004
2022	2692443374.5