Year	Percent
1996-01-01	52.9598
1997-01-01	55.6494
1998-01-01	59.2654
1999-01-01	48.3882
2000-01-01	63.1331
2001-01-01	101.5700
2002-01-01	50.9938
2003-01-01	56.0969
2004-01-01	34.2535
2005-01-01	58.5267
2006-01-01	46.1886
2007-01-01	46.9733
2008-01-01	45.7694
2009-01-01	44.7774
2010-01-01	43.4458
2011-01-01	44.1541
2012-01-01	43.9497
2013-01-01	42.6951
2014-01-01	43.0194