SELECT
    PF.PF_CODE AS 都道府県コード
    , PF.PF_NAME AS 都道府県名
    , ROUND(
        100 * HP.INP_YES / (HP.INP_YES + HP.INP_NO + HP.UNIDENTIFIED), 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
    , 都道府県コード ASC