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