Year	Percent
1999-01-01	73.9952000000000000
2000-01-01	90.6902000000000000
2001-01-01	90.5171000000000000
2002-01-01	158.9930000000000000
2003-01-01	228.1410000000000000
2004-01-01	332.5130000000000300
2005-01-01	244.1280000000000000
2006-01-01	185.6400000000000000
2007-01-01	151.4370000000000000
2008-01-01	140.7240000000000000
2009-01-01	79.1735000000000000
2010-01-01	56.2700000000000000
2011-01-01	3.8677000000000000
2012-01-01	6.0012700000000000
2013-01-01	6.4860000000000010
2014-01-01	6.0825200000000000
2015-01-01	6.1287400000000005
2016-01-01	5.7937500000000000