Year	%
1996	6.9
2001	6.7
2002	7.3
2003	7.5
2004	8.2
2005	5.9
2006	8.9
2007	8.9
2008	9.5
2009	9.4
2010	9.5
2011	9.5
2012	9.4
2013	9.8
2014	9.9
2015	10
2016	9.8
2017	9.8
2018	9.8
2019	9.8
2020	9.8
2021	9.8