SELECT
  P.PF_CODE AS 都道府県コード,
  P.PF_NAME AS 都道府県名,
  PT2015.TOTAL_AMT AS 総人口2015年,
  PT2020.TOTAL_AMT AS 総人口2020年,
  ROUND(CAST(PT2020.TOTAL_AMT AS REAL) / CAST(PT2015.TOTAL_AMT AS REAL) * 100) AS 人口増加率
FROM PREFECTURE AS P
JOIN POPU_TRANSITION AS PT2015 ON PT2015.SURVEY_YEAR = 2015 AND P.PF_CODE = PT2015.PF_CODE
JOIN POPU_TRANSITION AS PT2020 ON PT2020.SURVEY_YEAR = 2020 AND P.PF_CODE = PT2020.PF_CODE
WHERE PT2015.TOTAL_AMT < PT2020.TOTAL_AMT
ORDER BY 人口増加率 DESC, 都道府県コード ASC