Year	TDS, current US$
1970	84376000
1971	97823000
1972	116678000
1973	140440000
1974	147522080
1975	176179120
1976	209551470.1
1977	248976175.8
1978	312366503.8
1979	350501547.4
1980	398157798.8
1981	449616000
1982	507430000
1983	1608037000
1984	687618000
1985	823901000
1986	1122168000
1987	1472528000
1988	1736543000
1989	1721526000
1990	2064702000
1991	2359047000
1992	2455777000
1993	2491983000
1994	2672933000
1995	3022761000
1996	3042398000
1997	2802479000
1998	2757839000
1999	2919776000
2000	3101180000
2001	2907091000
2002	2848100000
2003	3130050000
2004	3581359000
2005	2767382000
2006	11255966000
2007	1338377000
2008	1517671000
2009	1572219000
2010	1199732000
2011	1928417509.2
2012	1451657000
2013	1498834000
2014	1611316000
2015	1461672000
2016	2014519000
2017	1757987000
2018	2433069000
2019	2261643000
2020	1748731000
2021	3347686000
2022	1713378000