Year	Percent
1993-01-01	0.08800500000000000
1994-01-01	0.05960700000000001
1995-01-01	0.07483400000000000
1996-01-01	0.13351100000000000
1997-01-01	0.15498900000000002
1998-01-01	0.13452300000000000
1999-01-01	0.09154900000000000
2000-01-01	0.16381199999999999
2001-01-01	0.29728499999999997
2002-01-01	1.88667000000000000
2003-01-01	3.66479000000000000
2004-01-01	8.09652000000000000
2005-01-01	12.73250000000000000
2006-01-01	16.69170000000000000
2007-01-01	18.51390000000000000
2008-01-01	23.79930000000000000
2009-01-01	20.93710000000000000
2010-01-01	26.41010000000000000
2011-01-01	27.56950000000000000
2012-01-01	30.75440000000000000
2013-01-01	31.05640000000000000
2014-01-01	30.03210000000000000
2015-01-01	25.27190000000000000
2016-01-01	29.27610000000000000
2017-01-01	32.86010000000000000