Year	PPG (TDS, current US$)
1989	241320178.7
1990	282814344.9
1991	335520412.6
1992	191267718.4
1993	88548945.3
1994	204132717.8
1995	414832491.6
1996	947223887.7
1997	964534498.9
1998	1487007553.4
1999	1383536131.2
2000	1679565380.7
2001	2208991179.1
2002	1424848885.4
2003	1476277082.3
2004	1867698095.1
2005	2545708455.8
2006	4329212396.3
2007	4362663227.6
2008	1576610560.3
2009	3531791660.9
2010	2289701493.7
2011	2801776447.3
2012	4324730859.4
2013	4921701567.6
2014	7061822763.8
2015	6512969284.3
2016	9330768352.5
2017	8116508851.2
2018	9245089699.5
2019	10026094201.4
2020	6965388389.8
2021	8886815843.6
2022	8690402678.1