Year	TDS, current US$
1970	3160000
1971	16009000
1972	22756000
1973	104884000
1974	45798000
1975	56329000
1977	75900000
1983	9950000
1984	33270000
1985	404790000
1986	3930000
1987	21977553.7
1988	97542887.2
1989	51197720.3
1990	216000921.7
1991	347912145.3
1992	167919289.8
1993	0
1994	0
1995	0
1996	0
1997	0
1998	181759339.6
1999	378490447.5
2000	539760179.7
2001	2228863790.2
2002	2644399051.6
2003	1539392841.3
2004	1268057057.4
2005	1467934925.8
2006	8343851033.8
2007	12914269.4
2008	3018065.4
2009	7140842.1
2010	9759792.1
2011	3340319.6
2012	910038.2
2013	3912594.3
2014	1504435.5
2015	1387931.6
2016	2325567.9
2017	1468556
2018	2650808.4
2019	27186000.3
2020	8649554
2021	4866316.7
2022	100904280.7