SELECT
  PR.PF_CODE AS 都道府県コード,
  PR.PF_NAME AS 都道府県名,
  PT.TOTAL_AMT AS 総人口2015年,
  PT_20.TOTAL_AMT AS 総人口2020年,
  ROUND(CAST(PT_20.TOTAL_AMT AS REAL) / CAST(PT.TOTAL_AMT AS REAL) * 100) AS 人口増加率
FROM POPU_TRANSITION AS PT
INNER JOIN PREFECTURE AS PR ON PT.PF_CODE = PR.PF_CODE
INNER JOIN POPU_TRANSITION AS PT_20 ON PT_20.PF_CODE = PR.PF_CODE AND PT_20.SURVEY_YEAR = 2020
WHERE PT.TOTAL_AMT < PT_20.TOTAL_AMT AND PT.SURVEY_YEAR = 2015
ORDER BY 人口増加率 DESC, 都道府県コード ASC 
;