Year	Percent
2000-01-01	31.250000000000000
2001-01-01	25.316500000000000
2002-01-01	24.210500000000000
2003-01-01	24.074100000000000
2004-01-01	26.956500000000000
2005-01-01	27.026999999999997
2006-01-01	29.268300000000000
2007-01-01	31.818200000000000
2008-01-01	34.254100000000000
2009-01-01	34.343400000000000
2010-01-01	28.571400000000000
2011-01-01	33.945000000000000
2012-01-01	34.234200000000000
2013-01-01	35.000000000000000
2014-01-01	34.959400000000000