SELECT
    PF_CODE AS 都道府県コード,
    PF_NAME AS 都道府県名,
    ROUND(CAST(INP_YES AS REAL)/ CAST((INP_YES+INP_NO+UNIDENTIFIED) AS REAL),2) AS 入院率
FROM hospitalization
LEFT JOIN prefecture
USING(PF_CODE)
ORDER BY 3 DESC ,1