Year	Percent
1993-01-01	0.000465000000000000
1994-01-01	0.010678000000000000
1995-01-01	0.013912000000000000
1996-01-01	0.030708999999999997
1997-01-01	0.028926999999999998
1998-01-01	0.030470999999999998
1999-01-01	0.027295000000000000
2000-01-01	0.432807000000000000
2001-01-01	0.645991000000000000
2002-01-01	0.765130000000000000
2003-01-01	0.610735000000000000
2004-01-01	2.547670000000000000
2005-01-01	2.853250000000000000
2006-01-01	3.289719999999999500
2007-01-01	3.607010000000000000
2008-01-01	3.271470000000000000
2009-01-01	3.309400000000000000
2010-01-01	4.508040000000000000
2011-01-01	4.494709999999999500
2012-01-01	3.518580000000000500
2013-01-01	4.438050000000000000
2014-01-01	4.354470000000000000
2015-01-01	3.306100000000000000
2016-01-01	2.991770000000000300
2017-01-01	2.759670000000000300