>>899
近年でも大分低い

  いだ___麒麟___青天___鎌倉___ど家
[01]15.5___19.1___20.0___17.3___15.4
[02]12.0___17.9___16.9___14.7___15.3
[03]13.2___16.1___16.7___16.2___14.8
[04]11.6___13.5___15.5___15.4___13.9