select a.age_code as '年齢コード', a.age_name as '年齢階層名',
  sum(s.sp_time_5) as '5時間未満', sum(s.sp_time_6) as '5時間以上6時間未満', sum(s.sp_time_7) as '6時間以上7時間未満',
  sum(s.sp_time_8) as '7時間以上8時間未満', sum(s.sp_time_9) as '8時間以上9時間未満', sum(s.sp_time_9over) as '9時間以上'
  from sleep_time_dtl s
  join age_grp a on s.age_code = a.age_code
  join prefecture p on s.pf_code = p.pf_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