Year	Percent
1982-01-01	0.64872200000000000
1983-01-01	0.46187600000000000
1984-01-01	0.41645100000000000
1985-01-01	0.45348800000000000
1986-01-01	0.62113300000000000
1987-01-01	0.38769300000000000
1988-01-01	0.16268700000000000
1989-01-01	0.08314600000000000
1990-01-01	0.13328299999999998
1991-01-01	0.32574699999999995
1992-01-01	0.61159300000000000
1993-01-01	0.88722900000000000
1994-01-01	1.63164000000000000
1995-01-01	1.82925999999999990
1996-01-01	2.86249000000000000
1997-01-01	3.32183000000000030
1998-01-01	3.57326000000000000
1999-01-01	4.70547000000000000
2000-01-01	4.41605000000000000
2001-01-01	5.41889000000000000
2002-01-01	6.51098000000000000
2003-01-01	8.39361000000000000
2004-01-01	6.68558000000000000
2005-01-01	5.21506000000000000
2006-01-01	5.29217000000000000
2007-01-01	4.79688000000000100
2008-01-01	4.06278000000000000
2009-01-01	5.25981000000000000
2010-01-01	5.44028000000000040
2011-01-01	5.82280000000000000
2012-01-01	8.30313999999999900
2013-01-01	9.30276999999999900
2014-01-01	10.39720000000000000
2015-01-01	13.00690000000000000
2016-01-01	13.01040000000000000