Year	PPG (TDS, current US$)
1992	1358414235.8
1993	2103736878.8
1994	3294589010.9
1995	5864183679.2
1996	6323332854.7
1997	5955740166
1998	7161403348.2
1999	4248499370.5
2000	4713058530.2
2001	9146893441.9
2002	7818888030.4
2003	10636392615.3
2004	10327831380.6
2005	27671366092.1
2006	35852619713.8
2007	16134351210.8
2008	32952668344.5
2009	21675962106.9
2010	31708088763.2
2011	23929301644.5
2012	16478168546.8
2013	22384180009.4
2014	51020492923.9
2015	47153434987.5
2016	52305192767.7
2017	27089632005.4
2018	61980769689.9
2019	40281081364.7
2020	60444822601.2
2021	34088221691
2022	45414427753.4