SELECT
    PT.PF_CODE AS 都道府県コード,
    PR.PF_NAME AS 都道府県名,
    SUM(SELECT
        TOTAL_AMT
        FROM POPU_TRANSITION
        WHERE TOTAL_AMT = 2015
        ) AS "総人口2015年",
    SUM(SELECT
        TOTAL_AMT
        FROM POPU_TRANSITION
        WHERE TOTAL_AMT = 2020
        ) AS "総人口2020年",
    ROUND("総人口2015年" / "総人口2020年" * 100) AS "人口増加率"
FROM
    POPU_TRANSITION AS PT
INNER JOIN PREFECTURE AS PR ON PT.PF_CODE = PR.PF_CODE
ORDER BY
    "人口増加率" DESC
    PT.PF_CODE ASC