Year	Percent
1996-01-01	47.2306
1997-01-01	53.7981
1998-01-01	74.5612
1999-01-01	40.7937
2000-01-01	47.2415
2001-01-01	39.3474
2002-01-01	53.4578
2003-01-01	54.9419
2004-01-01	52.9303
2005-01-01	58.8466
2006-01-01	57.7289
2007-01-01	63.1658
2008-01-01	65.5721
2009-01-01	96.0302
2010-01-01	98.7880
2011-01-01	91.1233
2012-01-01	89.2372
2013-01-01	88.5829
2014-01-01	90.9673