Year	Percent
1980-01-01	0.89598300000000000
1981-01-01	0.88064000000000000
1982-01-01	0.96138300000000000
1983-01-01	1.19282000000000000
1984-01-01	1.14198000000000000
1985-01-01	1.31318999999999990
1986-01-01	0.58405800000000000
1987-01-01	0.56464799999999990
1988-01-01	0.48385300000000000
1989-01-01	0.37442800000000004
1990-01-01	0.20055300000000000
1991-01-01	0.77332800000000000
1992-01-01	0.77207799999999990
1993-01-01	1.77004000000000000
1994-01-01	1.38168999999999990
1995-01-01	0.97408300000000000
1996-01-01	2.21245999999999960
1997-01-01	3.21377000000000020
1998-01-01	4.15383000000000000
1999-01-01	6.34464000000000000
2000-01-01	6.69937000000000000
2001-01-01	9.75021000000000100
2002-01-01	12.77410000000000000
2003-01-01	13.20120000000000000
2004-01-01	10.63830000000000000
2005-01-01	8.57298999999999900
2006-01-01	6.91831000000000100
2007-01-01	5.71812000000000000
2008-01-01	5.44756000000000000
2009-01-01	6.53308000000000000
2010-01-01	7.18360000000000000
2011-01-01	7.83233000000000100
2012-01-01	9.62563999999999900
2013-01-01	12.58220000000000000
2014-01-01	17.31540000000000000
2015-01-01	21.41540000000000000
2016-01-01	22.56780000000000000