SELECT
    PT_20.PF_CODE AS 都道府県コード,
    P.PF_NAME AS 都道府県名,
    PT_15.TOTAL_AMT AS 総人口2015年,
    PT_20.TOTAL_AMT AS 総人口2020年,
    ROUND(CAST(MAX(PT_20.TOTAL_AMT) AS FLOAT) / MIN(PT_15.TOTAL_AMT) * 100) AS 人口増加率
FROM
    PREFECTURE AS P
INNER JOIN
    POPU_TRANSITION AS PT_15 ON PT_15.PF_CODE = P.PF_CODE AND PT_15.SURVEY_YEAR = 2015
INNER JOIN
    POPU_TRANSITION AS PT_20 ON PT_20.PF_CODE = P.PF_CODE AND PT_20.SURVEY_YEAR = 2020
GROUP BY
    P.PF_CODE
HAVING
    総人口2020年 > 総人口2015年
ORDER BY
    人口増加率 DESC,
    CAST(P.PF_CODE AS NUMBER)
;