Year	TDS, current US$
1970	34893510.1
1971	37607195.3
1972	40804243.5
1973	51921857.5
1974	53231000
1975	53925000
1976	58604000
1977	76569000
1978	62999000
1979	66886000
1980	60173000
1981	60178000
1982	45342000
1983	40715000
1984	46976000
1985	38532000
1986	45546000
1987	37280000
1988	60377000
1989	44516000
1990	68097000
1991	135262000
1992	203981000
1993	245817000
1994	295749000
1995	434861000
1996	501028000
1997	465316000
1998	473723000
1999	603766000
2000	616031000
2001	570226000
2002	618052000
2003	695710000
2004	746856840.5
2005	701653250.7
2006	802522233.8
2007	1108323893.5
2008	597879435.4
2009	491303932.4
2010	520411240.9
2011	780700087.8
2012	491778023.5
2013	507618208.4
2014	432652220.8
2015	449517474.1
2016	649436708.9
2017	374934870.4
2018	445072000
2019	506510000
2020	609341000
2021	159278995.4
2022	461077181.6