Year	TDS, current US$
1999	32847
2000	35491.8
2001	17601.8
2002	22573.8
2003	34597.9
2004	60412.7
2005	85943.8
2006	101232.5
2007	287635.8
2008	851954.1
2009	1609476.5
2010	2303564.2
2011	2740120.7
2012	2462610.2
2013	1896472.6
2014	1138204.3
2015	355377.6
2016	11120.5
2017	6933.7
2018	12744.3
2019	125733.2
2020	40398.9
2021	24217.6
2022	500506.6