Year	Percent
1999-01-01	1.623401999
2000-01-01	1.804062247
2001-01-01	1.688302040
2002-01-01	2.013689041
2003-01-01	1.866353750
2004-01-01	1.632903576
2005-01-01	1.485234499
2006-01-01	1.823267579
2007-01-01	1.683464050
2008-01-01	1.284408689
2009-01-01	1.335182071
2010-01-01	1.408819079
2011-01-01	1.362484097
2012-01-01	1.496718287
2013-01-01	1.453460574