SELECT PREFECTURE.PF_CODE AS "都道府県コード", PREFECTURE.PF_NAME AS "都道府県名", ROUND(CAST(INP_YES AS FLOAT) / (INP_YES + INP_NO + UNIDENTIFIED) * 100, 1) AS "入院率"
  FROM HOSPITALIZATION INNER JOIN PREFECTURE ON HOSPITALIZATION.PF_CODE == PREFECTURE.PF_CODE