Year	TDS, current US$
1996	100173.2
1997	213294
1998	286280.1
1999	1424332.1
2000	2747652.6
2001	2363202.7
2002	2520619.1
2003	1981392.6
2004	321821.4
2005	955147.6
2006	1767189.3
2007	2931026.7
2008	4404636.5
2009	4344299.4
2010	3404285.5
2011	2605160
2012	1399291.1
2013	29946.8
2014	1410218.4
2015	1505458.1
2016	1912720.6
2017	4452817.2
2018	6323990.5
2019	5088739.6
2020	6267409.1
2021	3803590.6
2022	1552373.6