Year	Percent
1997-01-01	0.8237479999999999
1998-01-01	1.3784399999999999
1999-01-01	75.5783000000000000
2000-01-01	85.3601000000000000
2001-01-01	90.4848000000000000
2002-01-01	97.7784000000000000
2003-01-01	100.5270000000000000
2004-01-01	120.6270000000000100
2005-01-01	113.8929999999999900
2006-01-01	136.9140000000000000
2007-01-01	148.3070000000000200
2008-01-01	122.9720000000000100
2009-01-01	157.6430000000000000
2010-01-01	143.7240000000000000
2011-01-01	130.6510000000000000
2012-01-01	128.1530000000000000
2013-01-01	118.7550000000000000
2014-01-01	99.4673000000000000
2015-01-01	100.3910000000000000
2016-01-01	99.9637000000000000