Year	Percent
1996-01-01	68.42120000000000
1997-01-01	67.09660000000000
1998-01-01	62.55050000000000
1999-01-01	62.44270000000000
2000-01-01	62.55080000000000
2001-01-01	69.89410000000000
2002-01-01	69.81880000000000
2003-01-01	75.51250000000000
2004-01-01	65.57950000000000
2005-01-01	61.45130000000000
2006-01-01	68.66960000000000
2007-01-01	95.76570000000000
2008-01-01	111.53299999999999
2009-01-01	106.91700000000000
2010-01-01	96.41230000000000
2011-01-01	75.33450000000000
2012-01-01	99.42960000000000
2013-01-01	80.72920000000000
2014-01-01	81.22370000000000