Year	Percent
1983-01-01	0.81734700000000000
1984-01-01	1.69597999999999980
1985-01-01	1.66865000000000000
1986-01-01	1.84629000000000020
1987-01-01	2.54539000000000030
1988-01-01	1.44595000000000000
1989-01-01	2.01275000000000000
1990-01-01	0.79987800000000000
1991-01-01	0.38503200000000004
1992-01-01	0.35607300000000003
1993-01-01	0.71977500000000000
1994-01-01	1.07665000000000000
1995-01-01	1.29368000000000000
1996-01-01	0.86769500000000010
1997-01-01	3.30073000000000000
1998-01-01	3.24986000000000000
1999-01-01	4.04348000000000100
2000-01-01	5.44825000000000000
2001-01-01	2.72584000000000030
2002-01-01	5.57408000000000000
2003-01-01	7.08846000000000000
2004-01-01	3.03515000000000000
2005-01-01	1.80860999999999980
2006-01-01	2.97635000000000000
2007-01-01	3.44123000000000050
2008-01-01	2.26359000000000000
2009-01-01	2.05524000000000000
2010-01-01	2.57639000000000000
2011-01-01	3.27625000000000000
2012-01-01	3.18815000000000000
2013-01-01	2.73784000000000030
2014-01-01	1.46407999999999980
2015-01-01	1.52182000000000020
2016-01-01	1.26666000000000010