Year	Percent
1995	5.73893
1996	5.47472
1997	6.26812
1998	6.42525
1999	6.43281
2000	5.87204
2001	5.61304
2002	5.554
2003	5.51515
2004	5.60207
2005	5.71523
2006	5.92626
2007	5.89339
2008	5.92544
2009	4.92824
2010	4.62479
2011	4.49001
2012	4.50611
2013	4.52875
2014	4.58815
2015	4.82412
2016	4.93116