Year	Percent
2000-01-01	15.86457394179110
2001-01-01	13.78613601243140
2002-01-01	12.34144245553400
2003-01-01	10.80497777740760
2004-01-01	11.12300891372960
2005-01-01	9.16582139908399
2006-01-01	6.23525016549295
2007-01-01	5.38212806690288
2008-01-01	5.74161888557411
2009-01-01	16.67003498169200
2010-01-01	19.30130178527730
2011-01-01	13.06606493315820
2012-01-01	10.92579698257800
2013-01-01	9.09485767341240
2014-01-01	7.85259615982291
2015-01-01	6.24845754637484
2016-01-01	7.41936145112151
2017-01-01	6.18991925279527