SELECT
    PO.PF_CODE AS '都道府県コード', 
    PF.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;