Year	2017 PPP (%)
1977	0.1
1978	0.3
1979	0.1
1980	0
1981	0
1982	0
1983	0.1
1984	0
1986	0.1
1987	0.8
1989	0
1991	0.2
1993	0.8
1995	0.5
1998	1.4
2000	1.1
2002	1.2
2003	0.5
2004	0.5
2005	0.5
2006	0.5
2007	0.5
2008	0.5
2009	0.6
2010	0.9
2011	0.9
2012	0.8
2013	1.1
2014	0.9
2015	1.4
2016	1.2
2017	1.1
2018	1
2019	0.8
2020	0.7
2021	0.6