Year	Percent
1999-01-01	262.0950000000000000
2000-01-01	1.0587200000000000
2001-01-01	1.8792099999999998
2002-01-01	1.6878700000000000
2003-01-01	2.1723800000000000
2004-01-01	2.3489600000000000
2005-01-01	3.1633000000000000
2006-01-01	4.6872600000000000
2007-01-01	6.2788600000000000
2008-01-01	4.3536500000000000
2009-01-01	4.1605300000000005
2010-01-01	4.0908000000000000
2011-01-01	4.0318900000000000
2012-01-01	2.7894900000000002
2013-01-01	2.9575700000000000
2014-01-01	3.4405500000000000
2015-01-01	7.2991300000000000
2016-01-01	5.9983200000000000