Year	Percent
1995-01-01	3.1685200000000000
1996-01-01	6.9685500000000000
1997-01-01	4.4645100000000000
1998-01-01	5.0306300000000000
1999-01-01	6.8039200000000000
2000-01-01	5.0769000000000000
2001-01-01	5.1134100000000000
2002-01-01	7.8450399999999990
2003-01-01	8.4592700000000000
2004-01-01	5.4326400000000000
2005-01-01	7.0887899999999995
2006-01-01	10.0102000000000000
2007-01-01	6.6301700000000000
2008-01-01	5.6281300000000005
2009-01-01	6.1438400000000000
2010-01-01	4.6037800000000000