SELECT
    POP2015.PF_CODE AS 都道府県コード,
    PF_NAME AS 都道府県名,
    POP2015.TOTAL_AMT AS 総人口2015年,
    POP2020.TOTAL_AMT AS 総人口2020年,
    ROUND(100.0*POP2020.TOTAL_AMT/POP2015.TOTAL_AMT) AS 人口増加率
FROM
    POPU_TRANSITION AS POP2015
    INNER JOIN PREFECTURE 
        ON PREFECTURE.PF_CODE = POP2015.PF_CODE 
        AND POP2015.SURVEY_YEAR = 2015
    INNER JOIN POPU_TRANSITION AS POP2020
        ON PREFECTURE.PF_CODE = POP2020.PF_CODE
        AND POP2020.SURVEY_YEAR = 2020
WHERE
    POP2015.TOTAL_AMT < POP2020.TOTAL_AMT
ORDER BY
    人口増加率 DESC,
    都道府県コード ASC;