{
  "series_id": "bis.eer.jpy.broad",
  "label": "円の実効為替レート（BIS 広義・名目／実質）",
  "layer": 1,
  "source_class": "OFFICIAL_PUBLIC",
  "unit": "index (2020=100)",
  "cadence": "monthly",
  "algorithm": "bis-eer@1",
  "code_sha256": "86e0ba8306531f89c9ca324fd1d5f5b13546f547eca231912a5d7b3c70b475d5",
  "code_commit": null,
  "definition": "日本円の実効為替レート指数。名目は二国間為替レートの貿易加重幾何平均、実質は相対物価で調整したもの。広義バスケットは64の経済圏。指数の低下は円の対外価値の低下を意味する。",
  "acquisition_note": "BISのSDMX RESTful API（stats.bis.org）から直接取得する。同じ数字はFREDでも配布されているが、FREDは再配布者であって生成主体ではない。実例として2026年8月26日時点で、FREDの名目系列は2026年6月まで、同じFREDの実質系列は2026年7月までと、系列ごとに時点がずれていた。BIS直では両方が2026年7月まで揃っている。",
  "revision_note": "BISは相対物価の改訂やウェイトの更新に伴い過去の値を遡って改訂する。実質側で起きやすい。訂正時も旧値は SUPERSEDED として残る。",
  "rate_note": "前年同月比は指数から機械的に算出する。BISは変化率を公表しない。指数そのものを主とし、変化率は派生値として扱う。",
  "release_note": "BISは月次で公表する。個別の公表日は規則導出ではないため release_at_method は unknown とし、周期はカレンダーで保持する。",
  "vintage": {
    "neer_last_period": "2026-07",
    "reer_last_period": "2026-07",
    "aligned": true,
    "note": "名目と実質は同じリリースで公表されるが、時点が揃っているとは限らない。揃っていない場合、両者を並べた比較は異なる月どうしの比較になる。aligned が false のときは期間を確かめること。"
  },
  "license": {
    "holder": "Bank for International Settlements",
    "attribution_required": true,
    "redistribution": "permitted",
    "commercial_bundling": false,
    "note": "BIS統計の利用は、BISを出典として明記すること、誤認を招く使い方をしないこと、商用の出版物・製品に含める場合その収載が購読者等への追加課金を生じさせないことを条件に制限されない。したがって当所はこの系列を無償の配信にのみ置き、有償の束に含めない。他の系列と異なり CC BY 4.0 では再配布できない。",
    "terms_url": "https://www.bis.org/terms_statistics.htm"
  },
  "source": {
    "publisher": "Bank for International Settlements",
    "release": "BIS Effective Exchange Rate Indices",
    "url": "https://stats.bis.org/api/v2/data/dataflow/BIS/WS_EER/1.0/M.N+R.B.JP",
    "index_url": "https://data.bis.org/topics/EER",
    "api_doc": "https://stats.bis.org/api-doc",
    "dataflow": "BIS:WS_EER(1.0)",
    "keys": {
      "neer": "M.N.B.JP",
      "reer": "M.R.B.JP"
    }
  },
  "fields": {
    "neer": "名目実効為替レート（2020=100）",
    "reer": "実質実効為替レート（2020=100）",
    "neer_yoy_pct": "名目の前年同月比（指数から算出）",
    "reer_yoy_pct": "実質の前年同月比（指数から算出）"
  },
  "latest": {
    "record_id": "bis.eer.jpy.broad:2026-07-31:r0:5f2f3c420f1f",
    "observation_date": "2026-07-31",
    "observation_precision": "month",
    "publisher_release_at": null,
    "release_at_method": "unknown",
    "release_note": "公表時刻を当所で確立できていない。推定値は入れない（会則第11条）",
    "source_first_seen_at": null,
    "ingested_at": "2026-09-01T13:43:16.241Z",
    "period": "2026-07",
    "status": "ORIGINAL",
    "revision_seq": 0,
    "supersedes_record_id": null,
    "neer": "67.57",
    "reer": "65.04",
    "neer_yoy_pct": "-9.9",
    "reer_yoy_pct": "-10.3"
  },
  "previous": {
    "period": "2026-06",
    "neer": "68.03",
    "reer": "65.42"
  },
  "derived": {
    "coverage_from": "1994-01",
    "series_min_neer": "67.57",
    "at_series_min_neer": true,
    "vs_2020_base_neer_pct": "-32.4",
    "vs_2020_base_reer_pct": "-35.0",
    "note": "2020年平均を100とする指数であり、基準年との比較はその定義による。系列最小かどうかは記録の範囲（1994年1月以降）での比較である。"
  },
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      "release_at_method": "unknown",
      "release_note": "公表時刻を当所で確立できていない。推定値は入れない（会則第11条）",
      "source_first_seen_at": null,
      "ingested_at": "2026-09-01T13:43:16.241Z",
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      "release_at_method": "unknown",
      "release_note": "公表時刻を当所で確立できていない。推定値は入れない（会則第11条）",
      "source_first_seen_at": null,
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