Year	Percent
1983-01-01	111.59100000000001
1984-01-01	159.88100000000000
1985-01-01	210.07000000000000
1986-01-01	162.10399999999998
1987-01-01	175.66900000000000
1988-01-01	205.87700000000000
1989-01-01	207.12099999999998
1990-01-01	225.61200000000000
1991-01-01	171.35100000000000
1992-01-01	111.91600000000000
1993-01-01	84.29320000000000
1994-01-01	41.93410000000000
1995-01-01	175.26700000000000
1996-01-01	43.99830000000000
1997-01-01	49.85950000000000
1998-01-01	21.35010000000000
1999-01-01	20.89500000000000
2000-01-01	62.49660000000000
2001-01-01	36.83210000000000
2002-01-01	45.31670000000000
2003-01-01	45.79110000000000
2004-01-01	43.28910000000000
2005-01-01	24.81420000000000
2006-01-01	22.53290000000000
2007-01-01	18.80560000000000
2008-01-01	16.94190000000000
2009-01-01	64.91300000000000
2010-01-01	57.36350000000000
2011-01-01	58.57480000000000
2012-01-01	91.75050000000000
2013-01-01	50.54620000000000
2014-01-01	52.12770000000000
2015-01-01	63.24580000000000
2016-01-01	33.37910000000000