Year	TDS, current US$
1983	3338498
1984	9300367.2
1985	30003716
1986	77749632.8
1987	224637363.1
1988	183870523.4
1989	242323274
1990	445799380.8
1991	403686028.7
1992	535269556.9
1993	649623333.2
1994	839931264.6
1995	1040826294.1
1996	1100263623.3
1997	1286121563.7
1998	1391747927.4
1999	1660359048.4
2000	2918562848.1
2001	2990041576.7
2002	4271748631
2003	5318503649
2004	2419803259.7
2005	1882592749.6
2006	2275614339.2
2007	2508749323.2
2008	2539021404.7
2009	2345984874.4
2010	2329161976.3
2011	3954686111.4
2012	3280853933.9
2013	3422290610.3
2014	3534919261.8
2015	3422121782.3
2016	3573949538.2
2017	3813578796.1
2018	3848590845.1
2019	3842734247.3
2020	3378742490.1
2021	3000969587.7
2022	3268286195.3