Year	Percent
1996-01-01	72.50120000000000
1997-01-01	69.12570000000000
1998-01-01	80.29180000000000
1999-01-01	57.73080000000000
2000-01-01	48.74700000000000
2001-01-01	56.31070000000000
2002-01-01	55.79360000000000
2003-01-01	46.45250000000000
2004-01-01	218.08700000000002
2005-01-01	49.71300000000000
2006-01-01	49.38350000000000
2007-01-01	41.92520000000000
2008-01-01	45.85450000000000
2009-01-01	41.36320000000000
2010-01-01	46.66010000000000
2011-01-01	46.99080000000000
2012-01-01	46.28460000000000
2013-01-01	43.73430000000000
2014-01-01	42.63870000000000