Year	PPG (TDS, current US$)
1970	18125902.7
1971	22051965
1972	24741315.6
1973	46835770.8
1974	31613821.2
1975	36359062.9
1976	36404593.1
1977	34892116.6
1978	47875327.4
1979	96783815.4
1980	111426605.9
1981	142891583.5
1982	122555573.5
1983	152276478.2
1984	160694745.2
1985	176739287.9
1986	223076278.6
1987	165284502.2
1988	107018062.7
1989	186894518.9
1990	58669962.7
1991	85389469.3
1992	55397802.6
1993	118163882.5
1994	168068060.8
1995	263081125.9
1996	172840058
1997	126750143.1
1998	97827958.8
1999	99425835.4
2000	18286607.2
2001	14682870.6
2002	16847854.2
2003	18461497.7
2004	20332208.6
2005	23005761.5
2006	53982641.7
2007	76369370.2
2008	87986927.8
2009	110608555.9
2010	240654731.6
2011	216140393.6
2012	1153948992
2013	2459347856.6
2014	619456279.2
2015	482184415.2
2016	719905167.4
2017	624749259.4
2018	818830537.1
2019	630538817.9
2020	511727372.3
2021	786978303.3
2022	899930711.7