Year	Percent
1995	4.95
1996	7.28
1997	8.41
1998	10.79
2004	8.29
2005	6.83
2006	6.6031
2007	6
2008	6.09
2009	7.31
2010	6.82
2011	6.84
2012	6.45
2013	6.22
2014	7.52
2015	8.08
2016	7.69
2017	7.75