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