select
  pr.pf_code as 都道府県コード,
  pr.pf_name as 都道府県名,
  pt2015.total_amt as 総人口2015年,
  pt2020.total_amt as 総人口2020年,
  round(100.0 * pt2020.total_amt / pt2015.total_amt) as 人口増加率
from
  prefecture pr
left join popu_transition pt2015
  on (pr.pf_code = pt2015.pf_code and pt2015.survey_year = 2015)
left join popu_transition pt2020
  on (pr.pf_code = pt2020.pf_code and pt2020.survey_year = 2020)
order by 人口増加率 desc, 都道府県コード asc