Year	Percent
1996-01-01	34.304700000000000
1997-01-01	38.887800000000000
1998-01-01	34.678700000000000
1999-01-01	34.481500000000000
2000-01-01	41.469500000000000
2001-01-01	56.753400000000000
2002-01-01	56.881900000000000
2003-01-01	56.121800000000000
2004-01-01	30.388600000000000
2005-01-01	28.867500000000000
2006-01-01	29.003800000000000
2007-01-01	39.365500000000000
2008-01-01	43.626700000000000
2009-01-01	17.148200000000000
2010-01-01	12.190500000000000
2011-01-01	10.182400000000000
2012-01-01	9.642940000000000
2013-01-01	8.792050000000000
2014-01-01	8.564119999999999
2015-01-01	5.831710000000000
2016-01-01	6.073980000000001