SELECT
  HP.PF_CODE as 都道府県コード,
  PF.PF_NAME as 都道府県名,
  ROUND(
    CAST(HP.INP_YES as REAL) /
    CAST((HP.INP_YES + HP.INP_NO + HP.UNIDENTIFIED) as REAL)
    * 100,
    1
  ) as 入院率
FROM HOSPITALIZATION as HP
  INNER JOIN PREFECTURE as PF
  ON HP.PF_CODE = PF.PF_CODE
ORDER BY
  入院率 DESC,
  HP.PF_CODE ASC;