Year	PPG (TDS, current US$)
1970	2551157318.9
1971	2744009409.7000003
1972	3266484200.3
1973	4470932842.4
1974	5421409944
1975	6724808030.900001
1976	8020610369.3
1977	11475758671.7
1978	18574806821.499996
1979	25668094617
1980	25921568134.100006
1981	31846016609.899994
1982	35294603820.7
1983	34372535412.1
1984	36366627652.8
1985	40790090841.5
1986	42759593898.4
1987	45697590976.80001
1988	56232072070.49999
1989	53379973693.3
1990	51761073313.799995
1991	51722626175.299995
1992	60398446570.20001
1993	57811561599.5
1994	66945249219.40002
1995	86613120298.6
1996	103669458355.09998
1997	107892319810.3
1998	98138562818.4
1999	105111744511.2
2000	113849569607.3
2001	112691937748.60002
2002	108311963210.9
2003	119681234876.09999
2004	112516685312.80002
2005	128672629496.89998
2006	164423889802.69995
2007	123763400314.69998
2008	142143088831.49997
2009	117904729188.30002
2010	133652078392.90001
2011	132876198464.19998
2012	131539119295.00003
2013	144106593473.50003
2014	182108499282.59998
2015	222702204383.9
2016	220177628086.3
2017	226968933789.69995
2018	270758418110.39996
2019	278104476962.39996
2020	286903571799.7
2021	290547512283.60004
2022	299126101725.80005