Year	TDS, current US$
1970	623600000
1971	285012001.8000001
1972	470509355
1973	578584411.3000001
1974	470077868.40000004
1975	558262423.2
1976	955743503.4000001
1977	1269577857.3999999
1978	1918082575.0999997
1979	1405891922.5
1980	1919653604.6
1981	1800103185
1982	1934265778.1999998
1983	3210935524.9999995
1984	4934868202.299999
1985	5361325582.900001
1986	8420722714.199999
1987	9525751265.5
1988	9163478670.300001
1989	8746274453.000002
1990	9035330816.2
1991	7710368196.599999
1992	6329601237.7
1993	6151784404.400001
1994	5589208206.200001
1995	9589636982.500002
1996	8090436783.200002
1997	9500905259.400002
1998	8244936747.200001
1999	18895143053.500008
2000	23248278764.70001
2001	14224451106.199999
2002	22665894123.19999
2003	29446534542.800007
2004	24601781684.799995
2005	47015328215.69999
2006	30345213498.3
2007	8238095205.499998
2008	3828526284
2009	2233048402.700001
2010	3806165589.8999996
2011	4658041027
2012	10305097105
2013	15601721201.099998
2014	11184834256.499998
2015	5276771321.100001
2016	2428796465.1
2017	3721404418.7000003
2018	5874402284.899999
2019	7955118489.3
2020	7629814171.099998
2021	13813184932.700003
2022	29313056996.30001