Year	Percent
2001-01-01	2.4160500000000000
2002-01-01	2.5655500000000000
2003-01-01	2.7251400000000000
2004-01-01	2.6438300000000000
2005-01-01	3.0468599999999997
2006-01-01	2.7014600000000000
2007-01-01	2.4077200000000000
2008-01-01	2.5293700000000000
2009-01-01	2.6995800000000000
2010-01-01	2.3599500000000000
2011-01-01	2.5463800000000000
2012-01-01	2.7489800000000000
2013-01-01	2.9170400000000000
2014-01-01	2.6567900000000000