Year	TDS, current US$
1970	67863543
1971	77003461.8
1972	92047811.80000001
1973	118267905.69999999
1974	143299182.49999997
1975	175055620.29999998
1976	192978899.5
1977	239708524.29999998
1978	299542681.59999996
1979	393005526.49999994
1980	483633992.80000013
1981	520808244.90000004
1982	594123291.5
1983	708322246
1984	845538398.4000001
1985	976376274.1
1986	1467823148.2
1987	1775075914.1000004
1988	2182624031
1989	2098798619.5
1990	2443559857.0999994
1991	3059506176.9
1992	2730167845.899999
1993	2817119766.5
1994	3363850113.2999988
1995	3244056264.8999996
1996	3330209432.7999997
1997	3155301947.399999
1998	2842345152.100001
1999	2835355715.1
2000	2470242816.2000003
2001	1930169566.0999997
2002	2333185995.3000007
2003	2043914000.3000004
2004	2309252725.8
2005	2305755736.7999997
2006	2181595176.7
2007	2781507748.7999997
2008	2894617782.3999996
2009	2623135354.200001
2010	1905929836.2999995
2011	2223796381.3
2012	2103887921.9000003
2013	2319474806.4
2014	2475037345.2
2015	2829116821.4
2016	2950775840.4999995
2017	3640878622.7
2018	4524289401.8
2019	5850012393.200001
2020	6379650403.700003
2021	8363620457.999997
2022	7246458797.700003