Year	Percent
1991-01-01	11.3490000000000000
1992-01-01	8.6287100000000000
1993-01-01	7.9302899999999990
1994-01-01	8.5722899999999990
1995-01-01	5.9000000000000000
1996-01-01	4.1000000000000000
1997-01-01	6.5876300000000000
1998-01-01	5.8700000000000000
1999-01-01	6.9000000000000000
2000-01-01	5.8600000000000000
2001-01-01	7.4000000000000000
2002-01-01	4.1127600000000000
2003-01-01	3.6353900000000000
2004-01-01	4.6830200000000000
2005-01-01	3.7900000000000000
2006-01-01	3.2953300000000003