Year	TDS, current US$
1970	39837000
1971	33940000
1972	54417100
1973	40691701.5
1974	47477000
1975	40338000
1976	50062000
1977	60255000
1978	87917000
1979	120174000
1980	152743000
1981	142843000
1982	156159000
1983	197079353.2
1984	284169010.9
1985	345852877.3
1986	401513430.7
1987	368237052.6
1988	380086745.9
1989	311800614.5
1990	245016711.6
1991	325258319.2
1992	536342297.5
1993	333812866.5
1994	327216936.4
1995	366405580.9
1996	387990207.7
1997	370639573
1998	366188317.7
1999	385602658
2000	396228543.8
2001	424763748.2
2002	424252460.5
2003	461837989.8
2004	929398339.1
2005	1044158023.3
2006	1272735770.9
2007	1517085561.1
2008	1613441947.6
2009	1765186009.4
2010	1603918645.7
2011	2061700091.1
2012	1593845213.2
2013	2925701660.1
2014	1970314279.9
2015	2111826759.5
2016	3077179297
2017	4171549269.7
2018	1175855402.2
2019	2040358106.9
2020	3495718570.5
2021	1536719935.4
2022	5258502452.1