Year	$ 2011 PPP (%)
1999	1.762122
2000	1.708208
2001	1.971002
2002	2.205012
2003	1.931104
2004	1.842795
2005	2.47721
2006	2.008814
2007	1.092019
2008	1.244503
2009	1.004119
2010	1.379778
2011	0.6465301
2012	0.5550041
2013	0.4306742