Year	TDS, current US$
1989	6466836.1
1990	6144489.8
1991	4612076.7
1992	5187230.1
1993	83963.9
1994	661556.2
1995	2537132.4
1996	653000
1997	1413294.9
1998	1304000
1999	2938000
2000	55543670.5
2001	9735493.2
2002	8686748.5
2003	9200706.8
2004	12671564
2005	12453216.2
2006	12119511.8
2007	9774802.3
2008	12088965.1
2009	11791226.5
2010	14473035.5
2011	14801654.7
2012	18182846.2
2013	21648212.7
2014	34343679.1
2015	46573029.6
2016	61116056.9
2017	71522370.4
2018	92710159.6
2019	141397936.9
2020	190740559.7
2021	187932396.6
2022	247546891.6