Year	Percent
1995-01-01	31.36830
1996-01-01	19.74980
1997-01-01	39.72770
1998-01-01	65.05960
1999-01-01	79.60570
2000-01-01	49.96490
2001-01-01	22.48930
2002-01-01	24.95310
2003-01-01	21.00190
2004-01-01	17.46960
2005-01-01	15.62340
2006-01-01	17.01740
2007-01-01	24.20770
2008-01-01	7.13395
2009-01-01	3.79797
2010-01-01	4.62601
2011-01-01	3.76726
2012-01-01	3.86951
2013-01-01	4.21748
2014-01-01	5.22348
2015-01-01	1.97986