Year	PPG (TDS, current US$)
1970	2314537407
1971	1749923619.6999996
1972	2218992589.7000003
1973	3173347493.5999994
1974	3310055086.4999995
1975	3527826085.700001
1976	4228559203.799999
1977	5091086144.999999
1978	7067337957.099998
1979	9593439861.800001
1980	13333966807.5
1981	14741596358.400003
1982	16247265301.9
1983	18201501977.500004
1984	19148726451.699997
1985	21470512674.60001
1986	22023017681.4
1987	21755915565.800003
1988	25857034623.100006
1989	27168944894.6
1990	33137048291.600002
1991	33956931864.29999
1992	35840597210.200005
1993	35621117122.200005
1994	38477356725.9
1995	44249665816.100006
1996	45276438293.90002
1997	45018805075.999985
1998	40675516293.799995
1999	40588214159.3
2000	42651385469.9
2001	39547900802.6
2002	42991779762
2003	53278226257.90002
2004	48348297843.799995
2005	59181684112.90001
2006	61656404438.899994
2007	46562694586.00001
2008	53069569871.1
2009	44488085867.60001
2010	44992606669.299995
2011	47945513256.4
2012	47235144293.7
2013	58200441600.500015
2014	64927472302.3
2015	72673146587.39998
2016	82142938642.39998
2017	77584937531.89998
2018	93902654188.40001
2019	100500671578.40004
2020	106957273271.59999
2021	109592322175.99998
2022	109085408149.4