Year	Percent
1982	6.06
1991	5.93
1992	5.35
1993	5.88
1994	5.7
1995	5.4
1996	5.78
2003	8.22
2004	4.7
2005	3.89
2008	8.94
2009	8.72
2010	8.91
2011	4.41
2012	9
2014	6.17
2016	4.32