Year	Percent
1997-01-01	25.9259
1998-01-01	26.6667
1999-01-01	30.0000
2000-01-01	26.3158
2001-01-01	30.0000
2002-01-01	34.2857
2003-01-01	38.7097
2004-01-01	39.2157
2005-01-01	38.4615
2006-01-01	41.3333
2007-01-01	37.3134
2008-01-01	41.0959
2009-01-01	87.6238
2010-01-01	111.4750
2011-01-01	112.7660
2012-01-01	106.5000
2013-01-01	92.2411
2014-01-01	86.1538