Year	$ 2011 PPP (%)
2001	1.48065
2002	1.229772
2004	1.291738
2005	1.05603
2006	0.948048
2007	1.084965
2009	0.5930792
2010	0.4599055
2011	0.4508737
2012	0.3581676
2013	0.4047649
2014	0.5436411
2015	0.0700707