Year	Percent
1990-01-01	0.024447999999999998
1991-01-01	0.027511000000000000
1992-01-01	0.041638000000000000
1993-01-01	0.044117000000000000
1994-01-01	0.047816000000000004
1995-01-01	0.044973000000000000
1996-01-01	0.052995000000000010
1997-01-01	0.057028999999999996
1998-01-01	0.054840000000000000
1999-01-01	0.120216000000000000
2000-01-01	0.132891000000000000
2001-01-01	0.208561000000000020
2002-01-01	0.642466000000000000
2003-01-01	0.721320000000000000
2004-01-01	0.712058000000000000
2005-01-01	0.707186000000000000
2006-01-01	0.648454000000000000
2007-01-01	0.256705000000000000
2008-01-01	0.243969000000000020
2009-01-01	0.247117000000000000
2010-01-01	0.251046999999999960
2011-01-01	0.247505000000000030
2012-01-01	0.256420000000000000
2013-01-01	0.291885000000000000
2014-01-01	0.310430000000000040
2015-01-01	0.362268000000000000
2016-01-01	0.297198000000000000