Year	Percent
1987-01-01	4.25500000000000000
1988-01-01	0.36200000000000004
1989-01-01	0.36200000000000004
1990-01-01	1.27156000000000000
1991-01-01	1.27156000000000000
1992-01-01	0.04100200000000000
1993-01-01	0.04034100000000000
1994-01-01	0.04034100000000000
1995-01-01	0.31966000000000000
1996-01-01	0.42775000000000000
1997-01-01	0.75505200000000010
1998-01-01	1.02234000000000000
1999-01-01	1.53725000000000000
2000-01-01	2.64547000000000000
2001-01-01	3.13142000000000000
2002-01-01	1.53867000000000000
2003-01-01	0.96465300000000010
2004-01-01	1.06784000000000000
2005-01-01	1.12822999999999980
2006-01-01	1.00349000000000000
2007-01-01	1.18066000000000000
2008-01-01	2.35705000000000000
2009-01-01	3.24942000000000000
2010-01-01	3.43347000000000000
2011-01-01	4.48964000000000050
2012-01-01	10.04550000000000000
2013-01-01	12.87280000000000000
2014-01-01	14.00350000000000000
2015-01-01	22.03570000000000000
2016-01-01	30.75930000000000000