Year	%
1996	20.88
1999	17.61
2000	17.71
2001	11.74
2002	12.51
2003	12.48
2005	13.5
2006	13.12
2007	14.1
2010	12.91
2011	13.03
2012	13.39
2013	12.71
2014	10.97
2015	10.94
2016	11.55
2019	10.83
2020	11.22