Year	Percent
1994-01-01	33.73240
1995-01-01	8.47293
1996-01-01	10.00420
1997-01-01	10.73730
1998-01-01	19.51970
1999-01-01	11.95560
2000-01-01	11.83720
2001-01-01	14.28280
2002-01-01	14.67860
2003-01-01	16.56830
2004-01-01	18.57700
2005-01-01	20.40790
2006-01-01	24.72290
2007-01-01	29.42310
2008-01-01	33.59680
2009-01-01	45.53310
2010-01-01	48.38570
2011-01-01	42.15910
2012-01-01	36.21740
2013-01-01	39.25960
2014-01-01	42.38260
2015-01-01	47.33040
2016-01-01	50.61220