Year	Percent
1995-01-01	26.354300000000000
1996-01-01	25.655200000000000
1997-01-01	78.494300000000000
1998-01-01	54.597000000000000
1999-01-01	59.608999999999995
2000-01-01	87.646900000000000
2001-01-01	68.156700000000000
2002-01-01	54.861400000000000
2003-01-01	35.350300000000000
2004-01-01	49.480300000000000
2005-01-01	37.549400000000000
2006-01-01	40.872500000000000
2007-01-01	32.436400000000000
2008-01-01	21.066200000000000
2009-01-01	24.231100000000000
2010-01-01	21.914000000000000
2011-01-01	21.570200000000000
2012-01-01	22.723100000000000
2013-01-01	23.177700000000000
2014-01-01	21.956900000000000
2015-01-01	24.222200000000000
2016-01-01	30.859800000000000