SELECT
    A.AGE_CODE AS 年齢コード,
    A.AGE_NAME AS 年齢階層名,
    SUM(SD.SP_TIME_5) AS "5時間未満",
    SUM(SD.SP_TIME_6) AS "5時間以上6時間未満",
    SUM(SD.SP_TIME_7) AS "6時間以上7時間未満",
    SUM(SD.SP_TIME_8) AS "7時間以上8時間未満",
    SUM(SD.SP_TIME_9) AS "8時間以上9時間未満",
    SUM(SD.SP_TIME_9OVER) AS "9時間以上"
FROM
    SLEEP_TIME_DTL SD
JOIN
    PREFECTURE P ON SD.PF_CODE = P.PF_CODE
JOIN
    AGE_GRP A ON SD.AGE_CODE = A.AGE_CODE
WHERE
    P.PF_NAME IN ('北海道', '青森県', '岩手県', '宮城県', '福島県')
GROUP BY
    A.AGE_CODE