Year	Percent
1993-01-01	4.11815
1994-01-01	8.09410
1995-01-01	13.22850
1996-01-01	17.40600
1997-01-01	18.79630
1998-01-01	16.25610
1999-01-01	15.69360
2000-01-01	15.72060
2001-01-01	13.57900
2002-01-01	12.15730
2003-01-01	13.78200
2004-01-01	18.57840
2005-01-01	23.47740
2006-01-01	26.41960
2007-01-01	31.24670
2008-01-01	26.76300
2009-01-01	23.62120
2010-01-01	23.26940
2011-01-01	18.71920
2012-01-01	17.55420