Year	Percent
1996-01-01	1.5358600000000000
1997-01-01	1.3419299999999998
1998-01-01	1.3246799999999999
1999-01-01	0.8690650000000000
2000-01-01	0.6041880000000001
2001-01-01	0.6667649999999999
2002-01-01	0.8721370000000000
2003-01-01	1.3854600000000001
2004-01-01	1.3869300000000000
2005-01-01	1.5830500000000000
2006-01-01	1.8463800000000000
2007-01-01	1.7405700000000002
2008-01-01	1.7229700000000001
2009-01-01	1.6226300000000000
2010-01-01	1.3451899999999999
2011-01-01	1.6285100000000001
2012-01-01	1.5660100000000001
2013-01-01	1.3977899999999999
2014-01-01	1.3355700000000001
2015-01-01	1.2292399999999999
2016-01-01	1.4714100000000000