Year	2017 PPP (%)
1981	6.2
1982	6.4
1983	7.7
1984	7.5
1985	6.9
1986	4.9
1987	6.2
1988	6.7
1989	6.5
1990	6.9
1991	6.7
1992	6.7
1993	6.6
1994	6.1
1995	5.8
1996	6.6
1997	6.5
1998	6.4
1999	6.5
2000	6
2001	5.7
2002	5
2003	4.9
2004	4.4
2005	4.3
2006	3.5
2007	2.9
2008	2.6
2009	2.4
2010	2.2
2011	2
2012	1.8
2013	1.6
2014	1.5
2015	1.3
2016	1.5
2017	1.5
2018	1.5
2019	1.5
2020	1.4
2021	1.6
2022	1.2