Year	Percent
1994-01-01	6.739450000000000
1995-01-01	8.823750000000000
1996-01-01	9.348930000000001
1997-01-01	12.275100000000000
1998-01-01	12.744800000000000
1999-01-01	14.950100000000000
2000-01-01	17.206400000000000
2001-01-01	22.746600000000000
2002-01-01	24.175300000000000
2003-01-01	29.852600000000000
2004-01-01	29.398400000000000
2005-01-01	30.348000000000003
2006-01-01	31.528800000000000
2007-01-01	30.195100000000000
2008-01-01	30.328400000000000
2009-01-01	35.693000000000005
2010-01-01	36.477800000000000
2011-01-01	33.538000000000004
2012-01-01	42.220000000000000
2013-01-01	42.657200000000000
2014-01-01	43.815700000000000
2015-01-01	40.958000000000000
2016-01-01	43.793400000000000