Year	Percent
1994	2.1689
1995	3.2282
1996	1.56503
1997	2.24089
1998	1.94007
1999	0.87997
2000	1.24289
2001	1.09295
2002	1.37662
2003	1.34664
2004	1.17054
2005	1.08386
2006	1.11299
2007	0.8315
2009	2.94887
2010	3.38153
2011	3.90391
2012	3.8898
2013	3.6346
2014	3.09949
2015	2.98731
2016	1.96085