SELECT
    PO.PF_CODE AS 都道府県コード,
    PO.PF_NAME AS 都道府県名,
    PO.TOTAL_AMT AS 総人口2015年,
    PO2020.TOTAL_AMT AS 総人口2020年,
    ROUND(
    CAST(PO2020.TOTAL_AMT AS REAL) / CAST(PO.TOTAL_AMT AS REAL) * 100
    ) AS 人口増加率
FROM
    POPU_TRANSITION AS PO
    INNER JOIN PREFECTURE AS PF 
        ON PF.PF_CODE = PO.PF_CODE
        
    INNER JOIN POPU_TRANSITION AS PO2020
        ON PO2020.PF_CODE = PO.PF_CODE 
        AND PO2020.SURVEY_YEAR = 2020 
WHERE
    PO.SURVEY_YEAR = 2015
    AND PO2020.TOTAL_AMT >= PO.TOTAL_AMT
ORDER BY
    人口増加率 DESC,
    都道府県コード ASC;