Year	Percent
1996-01-01	31.573700000000000
1997-01-01	51.357600000000000
1998-01-01	38.435600000000000
1999-01-01	57.379500000000000
2000-01-01	31.120100000000000
2001-01-01	26.033400000000000
2002-01-01	26.033400000000000
2003-01-01	29.096900000000000
2004-01-01	30.404700000000000
2005-01-01	25.302200000000000
2006-01-01	35.086800000000000
2007-01-01	42.505000000000000
2008-01-01	21.660999999999998
2009-01-01	16.814500000000000
2010-01-01	44.203200000000000
2011-01-01	36.958500000000000
2012-01-01	26.311999999999998
2013-01-01	26.087800000000000
2014-01-01	51.662900000000000
2015-01-01	22.706600000000000
2016-01-01	8.231480000000000