Year	Percent
1999-01-01	0.3251690000000000
2000-01-01	0.8250910000000000
2001-01-01	0.7288000000000000
2002-01-01	1.4927700000000002
2003-01-01	28.1584000000000000
2004-01-01	42.6289000000000000
2005-01-01	55.9539999999999900
2006-01-01	78.5800000000000000
2007-01-01	96.8804000000000000
2008-01-01	38.0167000000000000
2009-01-01	45.7280000000000000
2010-01-01	36.2935000000000000
2011-01-01	31.7502000000000000
2012-01-01	34.3221000000000000
2013-01-01	37.9317000000000000
2014-01-01	35.1287000000000000
2015-01-01	37.5797000000000000
2016-01-01	38.6822000000000000