Year	Percent
1996-01-01	2.188020000000000
1997-01-01	1.155490000000000
1998-01-01	0.212556000000000
1999-01-01	0.204741000000000
2000-01-01	0.182296000000000
2001-01-01	0.707943000000000
2002-01-01	2.881680000000000
2003-01-01	5.820670000000000
2004-01-01	7.140120000000000
2005-01-01	8.457910000000000
2006-01-01	12.845500000000000
2007-01-01	23.009400000000000
2008-01-01	19.402800000000000
2009-01-01	9.007719999999999
2010-01-01	8.139289999999999
2011-01-01	6.099760000000000
2012-01-01	5.659530000000000