Year	Percent
1995-01-01	1.6538400000000002
1996-01-01	1.5836700000000001
1997-01-01	3.4974500000000000
1998-01-01	4.7776000000000000
1999-01-01	1.7550200000000000
2000-01-01	1.2980200000000002
2001-01-01	2.2071099999999997
2002-01-01	2.8145700000000002
2003-01-01	4.6185100000000000
2004-01-01	6.5289000000000000
2005-01-01	7.7560500000000000
2006-01-01	8.5457000000000000
2007-01-01	10.9372000000000000
2008-01-01	18.1680000000000000
2009-01-01	32.3278000000000000
2010-01-01	31.6416000000000000
2011-01-01	28.5071000000000000
2012-01-01	29.8004000000000000
2013-01-01	31.9648000000000000
2014-01-01	35.3466000000000000
2015-01-01	42.0656000000000000
2016-01-01	41.2502000000000000