Year	Percent
1981-01-01	0.143116000000000020
1982-01-01	0.132248000000000000
1983-01-01	0.128555000000000000
1984-01-01	0.142010000000000000
1985-01-01	0.149806000000000000
1986-01-01	0.137836000000000000
1987-01-01	0.081224000000000000
1988-01-01	0.103625000000000000
1989-01-01	0.056406000000000000
1990-01-01	0.042852999999999995
1991-01-01	0.072479000000000000
1992-01-01	0.143134999999999980
1993-01-01	0.208137000000000000
1994-01-01	0.355454000000000000
1995-01-01	0.356990000000000030
1996-01-01	0.187322000000000020
1997-01-01	0.107489000000000020
1998-01-01	0.349353000000000000
1999-01-01	0.437999999999999940
2000-01-01	0.644945000000000000
2001-01-01	0.222488000000000020
2002-01-01	0.420172000000000050
2003-01-01	0.538867000000000000
2004-01-01	1.320110000000000100
2005-01-01	1.399220000000000100
2006-01-01	1.126590000000000000
2007-01-01	1.815740000000000100
2008-01-01	1.428670000000000000
2009-01-01	0.806483000000000000
2010-01-01	1.153050000000000000
2011-01-01	1.606240000000000000
2012-01-01	2.164650000000000000
2013-01-01	1.748300000000000000
2014-01-01	3.230180000000000000
2015-01-01	1.686180000000000000
2016-01-01	1.057840000000000000
2017-01-01	1.012279999999999800