Year	2017 PPP (%)
1979	5.7
1989	20.3
1991	17.9
1995	14
1997	12.4
1998	12.8
1999	11.2
2000	9.5
2001	11.8
2002	8.2
2003	8.2
2004	7.4
2005	7.1
2006	7.9
2007	5.7
2008	3.7
2009	2.4
2010	3.2
2011	2.4
2012	3.1
2013	2.2
2014	2.6
2015	1.7
2016	1.7
2017	1.9
2018	1.4
2019	1.1
2021	1.3
2023	1.4