Year	Percent
1982-01-01	5.07775000000000
1983-01-01	6.39919000000000
1984-01-01	42.31790000000000
1985-01-01	10.36660000000000
1986-01-01	12.81870000000000
1987-01-01	18.35910000000000
1988-01-01	23.66000000000000
1989-01-01	25.62810000000000
1990-01-01	20.56780000000000
1991-01-01	14.13110000000000
1992-01-01	11.06150000000000
1993-01-01	18.51690000000000
1994-01-01	30.99840000000000
1995-01-01	33.58660000000000
1996-01-01	39.25210000000000
1997-01-01	50.54740000000000
1998-01-01	84.67690000000000
1999-01-01	183.31500000000000
2000-01-01	238.61599999999999
2001-01-01	185.63700000000000
2002-01-01	122.37000000000000
2003-01-01	98.74060000000000
2004-01-01	94.28470000000000
2005-01-01	96.43670000000000
2006-01-01	110.26500000000000
2007-01-01	129.26500000000000
2008-01-01	98.88760000000000
2009-01-01	47.15160000000000
2010-01-01	41.27190000000000
2011-01-01	49.01200000000000
2012-01-01	57.21640000000000