0809名無しさん@恐縮です垢版2017/12/07(木) 14:32:06.65ID:AWt5Z1hV0 2000 22.5% 2001 16.3% 2002 19.0% 2003 21.2% 2004 21.8% 2005 20.1% 2006 21.3% 2007 20.7% 2008 19.7% 2009 18.5% 2010 21.7% 2011 19.9% 2012 18.3% 2013 18.8% 2014 15.4% 2015 16.1% / 13.5% 2016 12.6% / 11.0% 2017 13.6% /