Year	Percent
1995-01-01	4.8873800000000000
1996-01-01	3.4083800000000000
1997-01-01	2.7369400000000000
1998-01-01	4.5655400000000000
1999-01-01	3.3640199999999996
2000-01-01	2.5768500000000000
2001-01-01	2.2038100000000000
2002-01-01	2.2147799999999997
2003-01-01	2.3410100000000000
2004-01-01	2.3119600000000000
2005-01-01	1.6944500000000000
2006-01-01	1.6800200000000000
2007-01-01	1.7992800000000000
2008-01-01	1.6983000000000000
2009-01-01	1.7409999999999999
2010-01-01	1.3677800000000000