Year	Percent
1992-01-01	66.90380000000000
1993-01-01	60.62620000000000
1994-01-01	52.89640000000000
1995-01-01	198.97700000000000
1996-01-01	219.33300000000000
1997-01-01	167.46700000000000
1998-01-01	137.89500000000000
1999-01-01	130.25900000000000
2000-01-01	119.05300000000000
2001-01-01	103.26200000000000
2002-01-01	83.44880000000000
2003-01-01	69.56710000000000
2004-01-01	67.84800000000000
2005-01-01	75.88210000000000
2006-01-01	83.03770000000000
2007-01-01	102.50500000000000
2008-01-01	138.99000000000000
2009-01-01	151.12700000000000
2010-01-01	152.40900000000000
2011-01-01	165.04100000000000
2012-01-01	170.68900000000002
2013-01-01	166.89100000000000
2014-01-01	167.33000000000000
2015-01-01	158.28400000000000
2016-01-01	138.36400000000000