Year	Percent
1992-01-01	1.1434500000000000
1993-01-01	1.0452900000000000
1994-01-01	1.1088700000000000
1995-01-01	1.4864200000000000
1996-01-01	1.2175600000000000
1997-01-01	1.7395900000000002
1998-01-01	4.4302000000000000
1999-01-01	6.9100399999999995
2000-01-01	8.6221900000000000
2001-01-01	10.7802000000000000
2002-01-01	14.0233000000000000
2003-01-01	18.8738000000000000
2004-01-01	20.9784000000000000
2005-01-01	24.9884000000000000
2006-01-01	33.2595000000000000
2007-01-01	42.4378000000000000
2008-01-01	57.0183000000000000
2009-01-01	73.9054000000000000
2010-01-01	62.7783000000000000
2011-01-01	55.1471000000000000
2012-01-01	53.1624000000000000
2013-01-01	55.0070000000000000
2014-01-01	56.9419000000000000
2015-01-01	53.5081000000000000
2016-01-01	38.8598000000000000