Year	Percent
1989-01-01	7.805780000000000
1990-01-01	9.659889999999999
1991-01-01	13.658000000000000
1992-01-01	18.784300000000000
1993-01-01	26.477500000000000
1994-01-01	33.954600000000000
1995-01-01	34.127800000000000
1996-01-01	30.416600000000000
1997-01-01	28.745000000000000
1998-01-01	25.995400000000000
1999-01-01	30.256700000000000
2000-01-01	34.154800000000000
2001-01-01	25.613400000000000
2002-01-01	22.893500000000000
2003-01-01	45.944400000000000
2004-01-01	48.243900000000000
2005-01-01	58.347400000000000
2006-01-01	73.470100000000000
2007-01-01	113.333000000000000
2008-01-01	97.189500000000000
2009-01-01	71.183500000000000
2010-01-01	89.576000000000010
2011-01-01	70.899500000000000
2012-01-01	58.824500000000000
2013-01-01	61.926500000000000
2014-01-01	65.897900000000000
2015-01-01	70.890800000000000
2016-01-01	67.464900000000000
2017-01-01	75.780500000000000