Year	Percent
1992	1.1
1996	0.5
1999	0.3
2000	0.1
2001	0.5
2002	1
2003	1.2
2004	1.2
2005	1.2
2008	0.9
2009	1
2010	1.1
2011	1.2
2012	1.1
2013	1.2
2014	1.2
2015	1.3
2016	1.3