Year	Percent
1995-01-01	23.699700000000000
1996-01-01	28.660999999999998
1997-01-01	31.546600000000000
1998-01-01	31.796200000000000
1999-01-01	29.168500000000000
2000-01-01	38.937600000000000
2001-01-01	47.064100000000000
2002-01-01	45.318200000000000
2003-01-01	54.028700000000000
2004-01-01	56.936500000000000
2005-01-01	51.727100000000000
2006-01-01	55.528900000000000
2007-01-01	53.549300000000000
2008-01-01	48.460100000000000
2009-01-01	57.283200000000000
2010-01-01	55.675300000000000
2011-01-01	40.062200000000000
2012-01-01	40.060400000000000
2013-01-01	44.358600000000000
2014-01-01	36.836800000000000
2015-01-01	33.331300000000000
2016-01-01	29.698100000000000