SELECT 
    PF.PF_CODE AS 都道府県コード,
    PF.PF_NAME AS 都道府県名,
    PT.TOTAL_AMT AS 総人口2015年,
    SUBPT.TOTAL_AMT AS 総人口2020年,
    ROUND(CAST(SUBPT.TOTAL_AMT-PT.TOTAL_AMT AS REAL) / PT.TOTAL_AMT * 100, 1) AS  人口増加率
FROM POPU_TRANSITION PT
JOIN PREFECTURE PF ON PF.PF_CODE = PT.PF_CODE 
JOIN POPU_TRANSITION SUBPT ON PF.PF_CODE = SUBPT.PF_CODE AND SUBPT.SURVEY_YEAR = 2020
WHERE PT.SURVEY_YEAR = 2015
ORDER BY 人口増加率 DESC, 都道府県コード