Year	%
2001	6.24
2002	5.32
2004	7.31
2005	6.7
2006	6.46
2007	6.78
2008	6.5
2009	6.71
2010	6.92
2011	6.64
2012	6.77
2013	7.04
2014	7.04
2015	7.15
2016	7.71
2017	6.3
2018	6.62
2019	6.58
2020	7.02
2021	7.03