Year	2017 PPP (%)
2009	0.6
2010	0.9
2011	0.4
2012	0.5
2013	0.4
2014	0.5
2015	0.4
2016	0.3
2017	0.3
2018	0.2
2019	0.2
2020	0.2
2021	0.2