Year	PPG (TDS, current US$)
1970	472423169.7
1971	442763471.6
1972	487413787.2
1973	678452864.9
1974	810832252.6
1975	806543586.5
1976	889630565.4
1977	1062465123
1978	2138295836.9
1979	1489840750.2
1980	2065779181.2
1981	2173698889.5
1982	2341053608.3
1983	2466844770.9
1984	2601223907
1985	4287866477.8
1986	4726480553.4
1987	4645376194
1988	3778673673.5
1989	2792957639.1
1990	4835574393.2
1991	3776348514.6
1992	3230342128
1993	4447111158.5
1994	3613640783.9
1995	5253002651.8
1996	6995043002.2
1997	9335375521.9
1998	9608478923.6
1999	11740160459.7
2000	14081205317.3
2001	9994574595.3
2002	3577304413.7
2003	6833401361.2
2004	2583475133.6
2005	3178284455.9
2006	4004566750.8
2007	5011131954
2008	5873587091.3
2009	7623385200.5
2010	8734949204.2
2011	7820481977.8
2012	6104249742.2
2013	7417613253.7
2014	10108412452.8
2015	11510933755.5
2016	17667247820.3
2017	30254108650.6
2018	26782796259.9
2019	28179537886.1
2020	10684151070.1
2021	5762350016.7
2022	7998025601.2