Year	%
1996	8.76
2006	12.35
2007	12.56
2008	12.47
2009	12.54
2010	12.77
2011	12.75
2012	12.13
2013	12.41
2014	12.32
2015	12.78
2016	13.26
2017	13.15
2018	13.56
2019	14.81