Year	Percent
1990-01-01	2.773950000000000
1991-01-01	3.962450000000000
1992-01-01	5.487060000000000
1993-01-01	7.394340000000000
1994-01-01	10.402000000000001
1995-01-01	14.643800000000000
1996-01-01	17.717000000000000
1997-01-01	26.881300000000000
1998-01-01	34.795400000000000
1999-01-01	36.421800000000000
2000-01-01	31.870800000000000
2001-01-01	25.419600000000000
2002-01-01	22.247400000000000
2003-01-01	23.082100000000000
2004-01-01	34.534400000000000
2005-01-01	43.875100000000000
2006-01-01	58.529500000000000
2007-01-01	85.198200000000000
2008-01-01	82.541100000000000
2009-01-01	69.531400000000000
2010-01-01	74.064700000000000
2011-01-01	65.343600000000000
2012-01-01	55.315000000000000
2013-01-01	50.522800000000000
2014-01-01	48.331000000000000
2015-01-01	45.445700000000000
2016-01-01	50.063800000000000
2017-01-01	57.055300000000000