SELECT
    t.AGE_CODE AS [年齢コード]
    , ag.AGE_NAME AS [年齢階層名]
    , SUM(t.SP_TIME_5) AS [5時間未満]
    , SUM(t.SP_TIME_6) AS [5時間以上6時間未満]
    , SUM(t.SP_TIME_7) AS [6時間以上7時間未満]
    , SUM(t.SP_TIME_8) AS [7時間以上8時間未満]
    , SUM(t.SP_TIME_9) AS [8時間以上9時間未満]
    , SUM(t.SP_TIME_9OVER) AS [9時間以上]
FROM
    (
    SELECT
        std.*
    FROM
        SLEEP_TIME_DTL AS std
    LEFT JOIN
        PREFECTURE AS pf
    ON
        std.PF_CODE = pf.PF_CODE
    WHERE
        pf.PF_NAME IN ('北海道', '青森県', '岩手県', '宮城県', '福島県')
    ) AS t
RIGHT JOIN
    AGE_GRP AS ag
ON
    t.AGE_CODE = ag.AGE_CODE
GROUP BY
    t.AGE_CODE
ORDER BY
    [年齢コード] ASC
;