Year	Percent
1996-01-01	37.2826
1997-01-01	36.8604
1998-01-01	49.6910
1999-01-01	43.1591
2000-01-01	44.7438
2001-01-01	39.1586
2002-01-01	34.6641
2003-01-01	51.2718
2004-01-01	12.0000
2005-01-01	28.7433
2006-01-01	32.0577
2007-01-01	28.4027
2008-01-01	34.1871
2009-01-01	23.9056
2010-01-01	23.8913
2011-01-01	23.8549
2012-01-01	21.8938
2013-01-01	22.2864
2014-01-01	25.1775