Year	Percent
1995-01-01	4.89732453075000
1996-01-01	5.30136145225000
1997-01-01	5.64717785650000
1998-01-01	7.98651111575000
1999-01-01	7.82450712250000
2000-01-01	8.06821917350000
2001-01-01	7.43039797900000
2002-01-01	7.58076115575000
2003-01-01	7.36339999350000
2004-01-01	7.86953015700000
2005-01-01	8.08433372875000
2006-01-01	6.91531308700000
2007-01-01	5.88549356025000
2008-01-01	4.58999526375000
2009-01-01	5.58471656925000
2010-01-01	5.24139934650000
2011-01-01	4.58714296050000
2012-01-01	5.11666666666667
2013-01-01	5.01666666666667
2014-01-01	4.28333333333333
2015-01-01	4.37500000000000
2016-01-01	4.45833333333333
2017-01-01	3.80000000000000