Year	Percent
1994-01-01	3.5236099999999997
1995-01-01	3.2502600000000000
1996-01-01	2.9994900000000000
1997-01-01	3.6968099999999997
1998-01-01	3.6160400000000004
1999-01-01	3.3450699999999998
2000-01-01	2.8509000000000000
2001-01-01	4.7631500000000000
2002-01-01	4.4892500000000000
2003-01-01	7.3059600000000010
2004-01-01	6.9038500000000000
2005-01-01	1.1911100000000001
2006-01-01	2.8831300000000000
2007-01-01	3.7021599999999997
2008-01-01	3.5407800000000003
2009-01-01	3.2211900000000000
2010-01-01	4.2738800000000000
2011-01-01	5.2937300000000000
2012-01-01	4.4697000000000000
2013-01-01	6.5947300000000000
2014-01-01	8.6506800000000000
2015-01-01	13.2200000000000000
2016-01-01	14.5738000000000000