Year	Percent
1996-01-01	63.5937
1997-01-01	75.3687
1998-01-01	57.4303
1999-01-01	60.5258
2000-01-01	88.8977
2001-01-01	139.4680
2002-01-01	68.4686
2003-01-01	60.5182
2004-01-01	54.5363
2005-01-01	45.5392
2006-01-01	46.3756
2007-01-01	43.0735
2008-01-01	47.9105
2009-01-01	37.4375
2010-01-01	42.9713
2011-01-01	47.7736
2012-01-01	43.1493
2013-01-01	47.1674
2014-01-01	48.2313