Year	Percent
1995	1.86
2001	2.233
2002	1.6902
2003	1.0517
2004	1.5759
2005	1.5295
2006	1.6539
2007	2.8312
2008	2.3156
2009	1.0068
2010	1.3846
2011	2.8238
2012	2.041
2013	2.2856
2014	3.1593
2015	1.7556
2016	1.6431
2017	1.1182