Year	Percent
1998-01-01	130.10000000000000
1999-01-01	126.80000000000000
2000-01-01	100.80000000000000
2001-01-01	113.20000000000000
2002-01-01	102.60000000000000
2003-01-01	145.90000000000000
2004-01-01	122.60000000000000
2005-01-01	160.30000000000000
2006-01-01	185.90000000000000
2007-01-01	169.40000000000000
2008-01-01	123.50000000000000
2009-01-01	100.40000000000000
2010-01-01	102.43799999999999
2011-01-01	102.32100000000000
2012-01-01	104.06400000000000
2013-01-01	97.35920000000000
2014-01-01	111.19500000000000
2015-01-01	121.93600000000000
2016-01-01	147.81200000000000