Year	PPG (TDS, current US$)
1980	971569910
1981	755113186
1982	665813279.3
1983	666120310.7
1984	461001052.9
1985	394470289
1986	369362382.6
1987	248241545.2
1988	397106638.9
1989	170500439.6
1990	251556954.1
1991	224952866.8
1992	285748924.9
1993	573523978.1
1994	2634906431
1995	5228354386.1
1996	6201539701.4
1997	6054773158.4
1998	2532475101.1
1999	3655225755.9
2000	2745995323.5
2001	1086220787.5
2002	1275848288.1
2003	1504609395.4
2004	1796324463.3
2005	2180158677.5
2006	2201106799
2007	2523801251
2008	2675815598.3
2009	2298820607.9
2010	1667600242.5
2011	1503956397.9
2012	479919989.8
2013	428844858.1
2014	505866141.9
2015	690104214.3
2016	2021257479.2
2017	409564500
2018	155814584.9
2019	108337533.4
2020	99927658.7
2021	94677008.4
2022	59115039.5