Year	PPG (TDS, current US$)
1981	68070510.3
1982	158586555.2
1983	300383699.2
1984	457895718.7
1985	1175227918.3
1986	1550456934.9
1987	1977166345.2
1988	2311320336.3
1989	2528346301.2
1990	1316477629.1
1991	220444650.6
1992	299883239.1
1993	271957244.4
1994	562666047.4
1995	820266067.6
1996	933812614.2
1997	802611147.2
1998	835339203.7
1999	644373587.9
2000	718749310.3
2001	826950953.5
2002	582483301.8
2003	663307134.5
2004	1422835253.2
2005	2088390994.3
2006	799035530.4
2007	703463982.7
2008	1025270513.9
2009	612135933.2
2010	447739840.4
2011	450460380.6
2012	431032705.5
2013	1886392047.6
2014	428452499.8
2015	399413334.9
2016	521191392.7
2017	1659256896.2
2018	569356214.2
2019	532300704
2020	545672456.2
2021	574142033.9
2022	1936820543.7