SELECT
  p.PF_CODE 都道府県コード,
  PF_NAME 都道府県名,
  round(INP_YES * 100.0 / (INP_YES + INP_NO + UNIDENTIFIED), 1) 入院率
FROM PREFECTURE p
LEFT JOIN HOSPITALIZATION h
  ON p.PF_CODE = h.PF_CODE
ORDER BY 入院率 DESC, p.PF_CODE ASC