Year	Percent
2003-01-01	5.394108772
2004-01-01	18.443559650
2005-01-01	21.346530910
2006-01-01	24.344650270
2007-01-01	20.641420360
2008-01-01	15.710129740
2009-01-01	12.936180110
2010-01-01	12.196439740
2011-01-01	11.474670410
2012-01-01	11.101503370