Year	Percent
1993-01-01	0.09105400000000000
1994-01-01	0.23156999999999997
1995-01-01	0.37280900000000000
1996-01-01	0.22671400000000000
1997-01-01	0.02591900000000000
1998-01-01	0.98378199999999990
1999-01-01	0.88719799999999990
2000-01-01	0.82114900000000000
2001-01-01	0.73735800000000000
2002-01-01	2.46751000000000000
2003-01-01	6.09992000000000000
2004-01-01	9.07462000000000000
2005-01-01	13.15790000000000000
2006-01-01	22.51380000000000000
2007-01-01	36.25900000000000000
2008-01-01	30.40060000000000000
2009-01-01	16.50560000000000000
2010-01-01	15.46690000000000000
2011-01-01	14.02300000000000000
2012-01-01	13.63070000000000000