Year	Percent
1995-01-01	6.265840000000000
1996-01-01	6.438969999999999
1997-01-01	5.706150000000000
1998-01-01	3.517890000000000
1999-01-01	5.261019999999999
2000-01-01	5.125440000000000
2001-01-01	6.355590000000000
2002-01-01	6.399100000000000
2003-01-01	9.475000000000000
2004-01-01	13.573700000000000
2005-01-01	19.849400000000000
2006-01-01	28.848200000000000
2007-01-01	38.392200000000000
2008-01-01	38.062300000000000
2009-01-01	32.247700000000000
2010-01-01	29.286300000000000
2011-01-01	27.970500000000000
2012-01-01	26.500400000000000
2013-01-01	19.436100000000000