Year	Percent
1996	3.14
1997	7.92
1998	6.09
2000	0.6888
2001	1.369
2003	2.5834
2004	1.9693
2005	0.6138
2006	0.8047
2007	0.7292
2008	1.5499
2009	1.0962
2010	1.0663
2011	0.4672
2012	0.3249
2013	0.3583
2014	0.4929
2015	0.5145
2016	1.2137
2017	0.9555