Year	Percent
1996-01-01	43.1503
1997-01-01	43.3995
1998-01-01	42.4971
1999-01-01	40.4725
2000-01-01	40.8946
2001-01-01	38.8047
2002-01-01	33.8170
2003-01-01	27.3344
2004-01-01	29.8459
2005-01-01	26.2746
2006-01-01	24.0401
2007-01-01	24.4623
2008-01-01	26.4954
2009-01-01	24.5752
2010-01-01	22.3108
2011-01-01	24.2390
2012-01-01	23.9613
2013-01-01	26.4771
2014-01-01	26.2728