2019-04-17 Trade statistics for FY 2018 and March 2019 日記 #練習用 関税局―貿易統計２０１８年度及び２０１９年３月 ４月１７日 ? Trade statistics for FY 2018 and March 2019 ? http://www.customs.go.jp/toukei/latest/index_e.htm
