Year	TDS, current US$
1972	0
1973	0
1974	2011942.2
1975	32576194.4
1976	73148634.9
1977	62985048.9
1978	36314323.2
1979	95222436.2
1980	146545713.2
1981	68807577.2
1982	71948665.9
1983	60200925.7
1984	106403889
1985	122071999.8
1986	178866589.2
1987	200812496.5
1988	141928598
1989	169318628.7
1990	238689825.3
1991	165240683.9
1992	95845493.5
1993	96367853.2
1994	57783363.6
1995	63970343.4
1996	89163393.8
1997	118565237.2
1998	102815385.6
1999	101771796.2
2000	97041846.4
2001	67642938.6
2002	90129159.7
2003	74888652.3
2004	2400955.1
2005	3362839.5
2006	4921542.2
2007	4963858.9
2008	15605990.1
2009	30317672.3
2010	50479961.8
2011	134939823.2
2012	200591600
2013	140572243.6
2014	74083570.7
2015	47433123.2
2016	19312083
2017	13056142.6
2018	52465331.7
2019	120692798.4
2020	131817586.8
2021	188871778.1
2022	191446467.9