Year	TDS, current US$
1970	8800631009.999998
1971	8568877406.500002
1972	10300820941.999998
1973	13628028594.199995
1974	16421138478.8
1975	18923165680
1976	21976962413.800007
1977	28120949703.800007
1978	40541783089.999985
1979	52378757212.49999
1980	66893701990.50004
1981	81655618119.20003
1982	88451574503.20001
1983	83935666260.89996
1984	90422540562.20001
1985	91772724112.2
1986	94620560074.2
1987	95949764629.99998
1988	113091664219.30003
1989	113020054653.89998
1990	112846848649.90001
1991	116451437558.00005
1992	128169465368.40001
1993	137935231103.19998
1994	151491333393
1995	186846237814.5
1996	218576006075.9
1997	242979612809.8
1998	246037080892.19998
1999	296857469470.80005
2000	313616061879.5001
2001	297147555564.7
2002	295835381584.2001
2003	334220934983.4
2004	327324657128.10016
2005	395174399215
2006	447466511115.0003
2007	445743004166.5999
2008	501855749013.40015
2009	497709231243.00006
2010	503723551886.2001
2011	533074130835.69995
2012	587117502084.3999
2013	650695860426.3997
2014	767964221184.1996
2015	838081070033.1002
2016	950030032619.9003
2017	974520277855.4001
2018	1086686192534.8999
2019	1219308057730.6006
2020	1178976965925.3003
2021	1255687348171.2004
2022	1352594692542.099