Year	Percent
1989-01-01	2.940220000000000000
1990-01-01	4.618519999999999000
1991-01-01	5.188400000000000000
1992-01-01	4.395550000000000000
1993-01-01	4.124550000000000000
1994-01-01	3.817770000000000000
1995-01-01	2.786550000000000000
1996-01-01	1.915490000000000100
1997-01-01	1.976190000000000100
1998-01-01	1.869150000000000000
1999-01-01	1.706450000000000000
2000-01-01	1.725280000000000000
2001-01-01	2.003470000000000000
2002-01-01	2.451510000000000000
2003-01-01	3.264259999999999700
2004-01-01	2.892570000000000000
2005-01-01	2.340770000000000000
2006-01-01	2.731940000000000300
2007-01-01	2.558659999999999700
2008-01-01	1.278070000000000000
2009-01-01	1.278070000000000000
2010-01-01	1.278070000000000000
2011-01-01	1.278070000000000000
2012-01-01	0.016624000000000000
2013-01-01	0.027458999999999997
2014-01-01	0.070165999999999990
2015-01-01	0.146835000000000000
2016-01-01	0.181457000000000000