SELECT po.PF_CODE AS 都道府県コード, 
       pf.PF_NAME AS 都道府県名, 
       po.TOTAL_AMT AS 総人口2015年,
       po20.TOTAL_AMT AS 総人口2020年,
       ROUND(CAST(po20.TOTAL_AMT AS REAL) / CAST(po.TOTAL_AMT AS REAL) * 100) AS 人口増加率
FROM POPU_TRANSITION AS po
INNER JOIN PREFECTURE AS pf
ON po.PF_CODE = pf.PF_CODE
INNER JOIN POPU_TRANSITION AS po20
ON po.PF_CODE = po20.PF_CODE
AND po20.SURVEY_YEAR = 2020
WHERE po.SURVEY_YEAR = 2015 
AND  po20.TOTAL_AMT >= po.TOTAL_AMT
ORDER BY 人口増加率 DESC, 都道府県コード ASC