SELECT
    T.PF_CODE AS 都道府県コード,
    P.PF_NAME AS 都道府県名,
    T.TOTAL_AMT AS 総人口2015年,
    T20.TOTAL_AMT AS 総人口2020年,
    ROUND(CAST(T20.TOTAL_AMT AS REAL) / CAST(T.TOTAL_AMT AS REAL) * 100
    )  AS 人口増加率 
FROM 
    POPU_TRANSITION AS T 
JOIN PREFECTURE AS P
    ON T.PF_CODE = P.PF_CODE 
JOIN POPU_TRANSITION AS T20 
    ON T20.PF_CODE = T.PF_CODE 
    AND T20.SURVEY_YEAR = 2020 
WHERE
    T.SURVEY_YEAR = 2015 
    AND  T20.TOTAL_AMT >= T.TOTAL_AMT
ORDER BY
    人口増加率 DESC, 都道府県コード ASC;