Year	Percent
1993-01-01	1.5040300000000000
1994-01-01	1.9049700000000000
1995-01-01	2.0796099999999997
1996-01-01	3.0360800000000000
1997-01-01	13.8452000000000000
1998-01-01	20.1259000000000000
1999-01-01	7.7272700000000000
2000-01-01	2.8122599999999998
2001-01-01	2.3019400000000000
2002-01-01	2.3471500000000000
2003-01-01	4.9507600000000000
2004-01-01	7.0676399999999990
2005-01-01	8.9936000000000000
2006-01-01	8.8318300000000000
2007-01-01	11.4368000000000000
2008-01-01	13.0426000000000000
2009-01-01	14.9933000000000000
2010-01-01	7.8307300000000000
2011-01-01	4.3264700000000000
2012-01-01	3.3973100000000000
2013-01-01	5.2953400000000000
2014-01-01	7.1211000000000000
2015-01-01	6.7762899999999995
2016-01-01	4.5236100000000000
2017-01-01	3.3532500000000000