Year	TDS, current US$
1994	2901483200.5
1995	3390700020.7
1996	4236423520.6
1997	6541657391.7
1998	4390226667.3
1999	4442097590.9
2000	4022622571.9
2001	4467710029
2002	5201757992.2
2003	4415108840
2004	4086318774.6
2005	4940405309.1
2006	7666951695.2
2007	4570796233.9
2008	6949038522.7
2009	5580389566.6
2010	6660054555
2011	6711506620.8
2012	10651715999.9
2013	13496572522.7
2014	10108963012.5
2015	27089199727.3
2016	14412541030.5
2017	14858242397
2018	29020006455.7
2019	21427174052.7
2020	27816570393
2021	26685125969.6
2022	27217926445.9