Year	Percent
1990-01-01	0.48961800000000005
1991-01-01	0.59796500000000000
1992-01-01	0.66559499999999990
1993-01-01	0.74572500000000000
1994-01-01	0.81141600000000000
1995-01-01	0.89382099999999990
1996-01-01	0.88513199999999990
1997-01-01	0.93824200000000000
1998-01-01	1.91115000000000000
1999-01-01	3.05980000000000000
2000-01-01	3.80231000000000000
2001-01-01	3.39051999999999950
2002-01-01	3.71844000000000000
2003-01-01	2.26579000000000000
2004-01-01	2.25510999999999970
2005-01-01	2.25799000000000000
2006-01-01	2.28016000000000000
2007-01-01	2.16060000000000000
2008-01-01	2.44594000000000020
2009-01-01	2.68681000000000000
2010-01-01	2.52395999999999980
2011-01-01	2.79137999999999980
2012-01-01	2.58367000000000000
2013-01-01	2.52134000000000040
2014-01-01	2.37239000000000000
2015-01-01	2.37688000000000000
2016-01-01	2.78802000000000000