国家和地区世界67.16782290.700.770.75高收入国家78.894298980.900.970.86中等收入国家70.389.67361040.750.840.73低收入国家58.460.85421680.560.580.64挪威79.4②101376700.910.990.99冰岛80.7②96312430.930.9...