Year	Percent
1995-01-01	40.3161
1996-01-01	29.7889
1997-01-01	31.6579
1998-01-01	37.9087
1999-01-01	46.0103
2000-01-01	53.1168
2001-01-01	48.7522
2002-01-01	48.2564
2003-01-01	10.4823
2004-01-01	10.1203
2005-01-01	11.2405
2006-01-01	26.2178
2007-01-01	35.7677
2008-01-01	26.7693
2009-01-01	34.5528
2010-01-01	18.2982
2011-01-01	15.4841
2012-01-01	14.2966
2013-01-01	17.3433