Year	Percent
1992-01-01	5.4296500000000000
1993-01-01	7.6013300000000000
1994-01-01	12.6729000000000000
1995-01-01	11.5766000000000000
1996-01-01	8.5248300000000000
1997-01-01	12.3701000000000000
1998-01-01	10.5496000000000000
1999-01-01	4.2799800000000000
2000-01-01	4.8452900000000000
2001-01-01	6.1184199999999995
2002-01-01	3.8377700000000000
2003-01-01	3.9546900000000003
2004-01-01	2.0767800000000000
2005-01-01	1.8840299999999999
2006-01-01	2.3761700000000000
2007-01-01	2.2915400000000004
2008-01-01	3.1449599999999998
2009-01-01	2.6842599999999996
2010-01-01	3.2254900000000000
2011-01-01	3.5276099999999997
2012-01-01	2.7359200000000000