Year	Percent
1989-01-01	8.5594200000000000
1990-01-01	8.5594200000000000
1991-01-01	8.5594200000000000
1992-01-01	8.5594200000000000
1993-01-01	10.6070000000000010
1994-01-01	9.1117000000000000
1995-01-01	14.6899000000000000
1996-01-01	37.9965000000000000
1997-01-01	82.9266000000000000
1998-01-01	80.5064000000000000
1999-01-01	25.5266000000000000
2000-01-01	13.4464000000000000
2001-01-01	3.2660400000000003
2002-01-01	4.4441200000000000
2003-01-01	8.2070400000000000
2004-01-01	44.7448000000000000
2005-01-01	86.7212000000000000
2006-01-01	73.4421000000000000
2007-01-01	75.6441000000000000
2008-01-01	85.8413000000000000
2009-01-01	86.9057000000000000
2010-01-01	48.6562000000000000
2011-01-01	13.5988000000000000
2012-01-01	12.2711000000000000
2013-01-01	17.6093000000000000