Year	%
1996	7.95
2006	11.23
2007	11.42
2008	11.1
2009	11.56
2010	11.59
2011	11.71
2012	10.98
2013	11.1
2014	11.15
2015	11.33
2016	11.69
2017	11.78
2018	12.11
2019	13.27