Year	Percent
1996-01-01	35.776500000000000
1997-01-01	36.814800000000000
1998-01-01	37.996500000000000
1999-01-01	46.343999999999994
2000-01-01	49.205200000000000
2001-01-01	43.957800000000000
2002-01-01	24.295000000000000
2003-01-01	28.160100000000000
2004-01-01	29.243100000000000
2005-01-01	26.971700000000000
2006-01-01	26.431900000000000
2007-01-01	26.986700000000000
2008-01-01	16.520700000000000
2009-01-01	17.410200000000000
2010-01-01	15.465500000000000
2011-01-01	19.654500000000000
2012-01-01	14.729700000000000
2013-01-01	9.538670000000000
2014-01-01	9.328540000000000
2015-01-01	5.788750000000000
2016-01-01	5.265550000000000