Year	Percent
1997-01-01	0.657263000000000000
1998-01-01	0.245150000000000000
1999-01-01	0.031692000000000005
2000-01-01	0.015116000000000000
2001-01-01	0.027864999999999997
2002-01-01	0.029829000000000000
2003-01-01	0.166305000000000000
2004-01-01	0.018306000000000000
2005-01-01	0.056541999999999995
2006-01-01	0.038970000000000000
2007-01-01	0.050013999999999996
2008-01-01	0.042934000000000000
2009-01-01	0.061127999999999995
2010-01-01	0.045556000000000000
2011-01-01	0.037235000000000004
2012-01-01	0.020093000000000000
2013-01-01	0.011844000000000000