Year	PPG (TDS, current US$)
1970	226557929.5
1971	171477567.6
1972	182621205.3
1973	190187502.8
1974	202232940.5
1975	256955128.1
1976	283547309.3
1977	328595918.4
1978	380914021.4
1979	513642842.9
1980	591718371.9
1981	564815087.5
1982	588544443.5
1983	1102712361
1984	929299621.9
1985	1017374170
1986	1018811786.4
1987	1125976333.2
1988	1264323728.7
1989	1281652894.6
1990	1360574478
1991	1504234449.1
1992	1750633090
1993	1903433475.6
1994	2870708726.9
1995	2315723766.5
1996	2272280921.1
1997	2979583629.5
1998	1553681609.8
1999	1704950230.4
2000	1784967126.9
2001	2030378585
2002	2120703168.6
2003	1957225620.4
2004	3131715046.2
2005	1753498098.9
2006	1832589042
2007	1983645905.9
2008	2226881379.1
2009	2479106585.3
2010	2954110554.1
2011	2141809784.6
2012	2128193519.3
2013	2550013657.4
2014	2499824110
2015	3172876043.2
2016	3749865600.5
2017	5952510539.7
2018	4727454800.4
2019	9049387736.2
2020	7995933418.4
2021	9730134508.7
2022	13765252553.2