Year	Percent
2000-01-01	13.29203510248320
2001-01-01	12.18639163363870
2002-01-01	10.04233516777970
2003-01-01	9.87828119168266
2004-01-01	9.13212287017302
2005-01-01	6.91105858110009
2006-01-01	5.58244801170100
2007-01-01	3.75612075079692
2008-01-01	5.11645305676322
2009-01-01	10.30146290820070
2010-01-01	14.09136147358170
2011-01-01	11.58558824584060
2012-01-01	9.09760008383331
2013-01-01	8.15715106268220
2014-01-01	6.82414004692606
2015-01-01	6.13849166169959
2016-01-01	6.06638163853955
2017-01-01	5.29881293313494