Year	PPG (TDS, current US$)
1970	3142300
1971	4242858.1
1972	2248190.9
1973	2426473
1974	2963207.7
1975	6020556.8
1976	3382374.7
1977	6725410.5
1978	11493082.8
1979	20399917.6
1980	34576539.4
1981	49236260.1
1982	62696161.8
1983	83041563.7
1984	74419868.1
1985	66005618.1
1986	64557341.5
1987	78350613.4
1988	142583857.3
1989	87274576.9
1990	80515484.5
1991	108934691.2
1992	158731699.3
1993	107264504.6
1994	116959882.8
1995	143677533.3
1996	138767516.9
1997	173131836.7
1998	177292236.5
1999	149051771.4
2000	436572330.3
2001	137571241.8
2002	197497800.6
2003	164807029.9
2004	184646191.5
2005	205277746.8
2006	233355833.7
2007	133035949.9
2008	136160181.4
2009	104789518.9
2010	86111313.5
2011	93547767.7
2012	85057432.7
2013	85123439.5
2014	137848442.5
2015	118667383.3
2016	138715612.4
2017	273960361.2
2018	177439356.8
2019	188314333.6
2020	368092547.8
2021	183083500.4
2022	185071923.1