Year	Percent
1995-01-01	2.0741300000000000
1996-01-01	3.8791900000000004
1997-01-01	2.0692700000000000
1998-01-01	1.9903300000000000
1999-01-01	1.7529700000000001
2000-01-01	3.9859500000000000
2001-01-01	4.0063300000000000
2002-01-01	3.5629699999999995
2003-01-01	2.8818599999999996
2004-01-01	2.2220800000000000
2005-01-01	2.6516900000000003
2006-01-01	2.2608000000000000
2007-01-01	1.8743000000000000
2008-01-01	1.6384299999999998
2009-01-01	1.9478099999999998
2010-01-01	2.0991400000000002
2011-01-01	2.5632700000000000
2012-01-01	3.3949500000000000
2013-01-01	1.3533800000000000
2014-01-01	1.2448900000000000
2015-01-01	1.3149700000000000
2016-01-01	1.2674299999999998