Year	2017 PPP (%)
1982	0.9
1983	0.9
1984	0.9
1985	0.9
1986	0.9
1987	0.8
1988	0.8
1989	0.7
1990	0.8
1991	0.8
1992	0.9
1993	1.2
1994	1.4
1995	1.2
1996	1.2
1997	0.8
1998	0.9
1999	1.2
2000	1
2001	0.9
2002	0.8
2003	0.8
2004	0.7
2005	0.6
2006	0.6
2007	0.5
2008	0.5
2009	0.4
2010	0.5
2011	0.5
2012	0.5
2013	0.5
2014	0.6
2015	0.6
2016	0.5
2017	0.6
2018	0.5
2019	0.4
2020	0.3
2021	0.3
2022	0.3