SELECT 
    PT.PF_CODE AS 都道府県コード, 
    PF_NAME AS 都道府県名,
    ROUND(CAST(PT2020.TOTAL_AMT AS REAL) / CAST(PT.TOTAL_AMT AS REAL) * 100) AS 人口増加率
FROM 
    POPU_TRANSITION AS PT
    INNER JOIN PREFECTURE AS P ON PT.PF_CODE = P.PF_CODE
    INNER JOIN POPU_TRANSITION AS PT2020 ON PT2020.PF_CODE = PT.PF_CODE AND PT2020.SURVEY_YEAR = 2020
WHERE 
    PT.SURVEY_YEAR = 2015
    AND PT2020.TOTAL_AMT >= PT.TOTAL_AMT
ORDER BY 
    人口増加率 DESC
    PT.PF_CODE ASC