Year	Percent
1995-01-01	4.8336200000000000
1996-01-01	3.7180100000000000
1997-01-01	3.3134500000000000
1998-01-01	3.9058699999999997
1999-01-01	5.1940599999999995
2000-01-01	6.4198200000000000
2001-01-01	7.0277600000000010
2002-01-01	7.3980900000000000
2003-01-01	7.7819600000000010
2004-01-01	8.4566800000000000
2005-01-01	11.3221000000000000
2006-01-01	15.9325000000000000
2007-01-01	21.7942000000000000
2008-01-01	30.3066000000000000
2009-01-01	33.7699000000000000
2010-01-01	30.8765000000000000
2011-01-01	32.4760000000000000
2012-01-01	35.3413000000000000
2013-01-01	39.6716000000000000
2014-01-01	44.2967000000000000
2015-01-01	49.8484000000000000
2016-01-01	56.1004000000000000