Year	Percent
1995	1.27518
1996	1.21835
1997	6.63956
1998	2.27684
1999	5.30114
2000	6.35106
2001	5.8328
2002	6.07579
2003	7.18521
2004	5.67391
2005	2.9057
2006	2.01461
2007	1.1905
2008	1.02231
2009	1.56902
2010	1.49505
2011	4.80659
2012	5.05449
2013	6.69682
2014	5.20052
2015	5.19347
2016	8.1011