Year	Percent
1995-01-01	36.062800000000000
1996-01-01	31.603100000000000
1997-01-01	33.057800000000000
1998-01-01	33.057800000000000
1999-01-01	34.534600000000000
2000-01-01	31.723500000000000
2001-01-01	37.532100000000000
2002-01-01	42.045800000000000
2003-01-01	36.290400000000000
2004-01-01	41.291700000000000
2005-01-01	45.563900000000000
2006-01-01	48.322700000000000
2007-01-01	53.775900000000000
2008-01-01	42.195000000000000
2009-01-01	43.255000000000000
2010-01-01	47.816700000000000
2011-01-01	50.141600000000000
2012-01-01	42.524500000000000
2013-01-01	41.379000000000000
2014-01-01	42.498999999999995
2015-01-01	41.722800000000000
2016-01-01	38.988600000000000