Year	2017 PPP (%)
1990	1.3
1991	1.5
1992	1.8
1993	2.1
1994	2.6
1995	2.8
1996	2.8
1997	2.8
1998	2.8
1999	3.4
2000	3.3
2001	3
2002	2.6
2003	2.7
2004	1.8
2005	1.3
2006	0.9
2007	0.6
2008	0.4
2009	0.3
2010	0.3
2011	0.3
2012	0.3
2013	0.2
2014	0.3
2015	0.3
2016	0.2
2017	0.2
2018	0.1
2019	0.1
2020	0.2
2021	0.2
2022	0.1