Year	2017 PPP (%)
1981	1.2
1987	1.2
1989	3.2
1992	2.5
1995	4.1
1998	5.2
1999	5.3
2001	4.6
2002	7.9
2003	9.6
2004	8.4
2005	8.6
2006	3.9