Year	Percent
1989-01-01	1.0607100000000000
1990-01-01	3.0901000000000000
1991-01-01	1.3041399999999999
1992-01-01	0.7398150000000000
1993-01-01	1.5720900000000000
1994-01-01	9.9479700000000000
1995-01-01	32.8906000000000000
1996-01-01	30.5682000000000000
1997-01-01	2.2912600000000000
1998-01-01	1.0266400000000000
1999-01-01	4.8824700000000000
2000-01-01	4.1526500000000000
2001-01-01	1.2138100000000000
2002-01-01	1.4908500000000000
2003-01-01	1.4884800000000000
2004-01-01	2.5632800000000000
2005-01-01	1.5687000000000000
2006-01-01	3.2618200000000000
2007-01-01	2.5341000000000000
2008-01-01	3.5484199999999997
2009-01-01	3.7506500000000000
2010-01-01	3.5169099999999998
2011-01-01	1.6716600000000000
2012-01-01	2.4056200000000000
2013-01-01	3.1064599999999998
2014-01-01	3.3870199999999997
2015-01-01	4.6814200000000000