Year	Percent
1985-01-01	174.8730
1986-01-01	222.7680
1987-01-01	273.4430
1988-01-01	233.1440
1989-01-01	226.2750
1990-01-01	261.2550
1991-01-01	388.5450
1992-01-01	397.1150
1993-01-01	199.6600
1994-01-01	73.9689
1995-01-01	63.9780
1996-01-01	75.0274
1997-01-01	93.3568
1998-01-01	98.8196
1999-01-01	92.8239
2000-01-01	86.7652
2001-01-01	80.5372
2002-01-01	75.3211
2003-01-01	54.4265
2004-01-01	40.2492
2005-01-01	40.3435
2006-01-01	45.9846
2007-01-01	48.6026
2008-01-01	61.9417
2009-01-01	72.0064
2010-01-01	65.6588
2011-01-01	71.1381
2012-01-01	57.0886
2013-01-01	47.7624
2014-01-01	63.1293
2015-01-01	84.6796
2016-01-01	104.6480