Year	Percent
1999-01-01	0.4886370000000000
2000-01-01	0.9935809999999999
2001-01-01	1.1307000000000000
2002-01-01	0.9438660000000000
2003-01-01	1.1664200000000000
2004-01-01	2.3183700000000003
2005-01-01	1.7304200000000000
2006-01-01	2.3519900000000002
2007-01-01	2.4478900000000000
2008-01-01	1.5028200000000000
2009-01-01	2.0935400000000000
2010-01-01	2.0962500000000000
2011-01-01	1.8149900000000000
2012-01-01	1.9478799999999998
2013-01-01	1.8269099999999998
2014-01-01	1.3934600000000001
2015-01-01	1.6098299999999999
2016-01-01	1.6453900000000001
2017-01-01	1.2331200000000000