Year	TDS, current US$
1970	67525000
1971	82403000
1972	108091000
1973	140378000
1974	160168000
1975	193573000
1976	252616000
1977	355759000
1978	393074000
1979	416401000
1980	473006000
1981	519016000
1982	624198429
1983	770307232
1984	950234861.7
1985	1140369984.2
1986	1578479684.4
1987	2038476778.5
1988	2191818563.6
1989	1982378495.1
1990	2551369564.8
1991	2524854498.7
1992	2519325569.6
1993	2934822864.7
1994	2517146652.7
1995	2495677000
1996	2259054000
1997	2087981000
1998	2067882000
1999	4214480000
2000	5780805000
2001	2566289289.7
2002	3387851771.3
2003	4737385000
2004	4318970000
2005	2626304000
2006	2530959000
2007	2897571000
2008	2886074133.7
2009	3793045698
2010	2601758665.9
2011	8370581585.8
2012	2170866404
2013	4454948493.1
2014	2012789283.2
2015	2321560723
2016	2541166587
2017	2890358383.2
2018	3274199899.5
2019	3288786358
2020	3072495688.3
2021	3133790259.2
2022	3686396440.1