Year	Percent
1996-01-01	5.0335050000000000
1997-01-01	3.4576569999999998
1998-01-01	11.5951200000000000
1999-01-01	16.8471300000000000
2000-01-01	8.5482649999999990
2001-01-01	9.4824869999999990
2002-01-01	8.1040670000000000
2003-01-01	7.7047060000000000
2004-01-01	8.7501750000000000
2005-01-01	5.9606390000000000
2006-01-01	5.6739130000000000
2007-01-01	4.3282890000000000
2008-01-01	4.9897040000000000
2009-01-01	6.3159380000000000
2010-01-01	5.5210760000000000
2011-01-01	4.6357770000000000
2012-01-01	4.0676480000000000
2013-01-01	4.0536640000000000
2014-01-01	1.7820840000000000