select t3.PF_CODE as `都道府県コード`,
    t3.PF_NAME as ` 都道府県名`,
    t1.TOTAL_AMT as `総人口2015年`,
    t2.TOTAL_AMT as `総人口2020年`,
    round(cast(t2.TOTAL_AMT as REAL) / cast(t1.TOTAL_AMT as REAL) * 100) as `人口増加率`
from (
        select SURVEY_YEAR,
            PF_CODE,
            TOTAL_AMT
        from POPU_TRANSITION
        where SURVEY_YEAR = 2015
    ) t1
    join (
        select SURVEY_YEAR,
            PF_CODE,
            TOTAL_AMT
        from POPU_TRANSITION
        where SURVEY_YEAR = 2020
    ) t2 on t1.PF_CODE = t2.PF_CODE
    join PREFECTURE t3 on t1.PF_CODE = t3.PF_CODE
where t2.TOTAL_AMT > t1.TOTAL_AMT
order by `人口増加率` desc,
    `都道府県コード`