Year	%
1992	8
1993	8.8
1995	6.2
1996	7.1
2002	8.8
2003	9.1
2004	8.8
2005	8.8
2006	8.8
2007	9.5
2008	9.6
2009	10
2010	10.2
2011	10.2
2012	10.2
2013	10.3
2014	10.5
2015	10
2016	10.1
2017	9.8
2018	9.9
2019	9.7
2020	10