Year	Percent
1996-01-01	23.5294
1997-01-01	31.2500
1998-01-01	53.3333
1999-01-01	47.3684
2000-01-01	36.8421
2001-01-01	48.6486
2002-01-01	50.9434
2003-01-01	59.5745
2004-01-01	45.2626
2005-01-01	45.5446
2006-01-01	48.5185
2007-01-01	45.2539
2008-01-01	40.4192
2009-01-01	46.0499
2010-01-01	56.6135
2011-01-01	62.5607
2012-01-01	61.7668
2013-01-01	60.8338
2014-01-01	49.1721