{"updated": "2026-09-19", "title": "1ドルは、何円だったか", "source": "欧州中央銀行（ECB）の参照レート", "source_url": "https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html", "license": "CC BY 4.0（数値）", "method": "公表値の年ごとの平均。点が10未満の年は出さない", "series": {"usdjpy": {"label": "1ドル", "unit": "円", "yearly": [{"year": "1999", "avg": 113.767, "points": 259}, {"year": "2000", "avg": 107.746, "points": 255}, {"year": "2001", "avg": 121.409, "points": 254}, {"year": "2002", "avg": 125.138, "points": 255}, {"year": "2003", "avg": 115.929, "points": 255}, {"year": "2004", "avg": 108.158, "points": 259}, {"year": "2005", "avg": 110.181, "points": 257}, {"year": "2006", "avg": 116.307, "points": 255}, {"year": "2007", "avg": 117.774, "points": 255}, {"year": "2008", "avg": 103.444, "points": 256}, {"year": "2009", "avg": 93.542, "points": 256}, {"year": "2010", "avg": 87.708, "points": 258}, {"year": "2011", "avg": 79.702, "points": 257}, {"year": "2012", "avg": 79.753, "points": 256}, {"year": "2013", "avg": 97.618, "points": 255}, {"year": "2014", "avg": 105.818, "points": 255}, {"year": "2015", "avg": 121.08, "points": 256}, {"year": "2016", "avg": 108.655, "points": 257}, {"year": "2017", "avg": 112.194, "points": 255}, {"year": "2018", "avg": 110.473, "points": 255}, {"year": "2019", "avg": 108.977, "points": 255}, {"year": "2020", "avg": 106.741, "points": 257}, {"year": "2021", "avg": 109.87, "points": 258}, {"year": "2022", "avg": 131.55, "points": 257}, {"year": "2023", "avg": 140.589, "points": 255}, {"year": "2024", "avg": 151.431, "points": 256}, {"year": "2025", "avg": 149.655, "points": 255}, {"year": "2026", "avg": 158.58, "points": 183}]}, "eurjpy": {"label": "1ユーロ", "unit": "円", "yearly": [{"year": "1999", "avg": 121.317, "points": 259}, {"year": "2000", "avg": 99.475, "points": 255}, {"year": "2001", "avg": 108.682, "points": 254}, {"year": "2002", "avg": 118.063, "points": 255}, {"year": "2003", "avg": 130.971, "points": 255}, {"year": "2004", "avg": 134.445, "points": 259}, {"year": "2005", "avg": 136.849, "points": 257}, {"year": "2006", "avg": 146.015, "points": 255}, {"year": "2007", "avg": 161.253, "points": 255}, {"year": "2008", "avg": 152.454, "points": 256}, {"year": "2009", "avg": 130.337, "points": 256}, {"year": "2010", "avg": 116.239, "points": 258}, {"year": "2011", "avg": 110.959, "points": 257}, {"year": "2012", "avg": 102.492, "points": 256}, {"year": "2013", "avg": 129.663, "points": 255}, {"year": "2014", "avg": 140.306, "points": 255}, {"year": "2015", "avg": 134.314, "points": 256}, {"year": "2016", "avg": 120.197, "points": 257}, {"year": "2017", "avg": 126.711, "points": 255}, {"year": "2018", "avg": 130.396, "points": 255}, {"year": "2019", "avg": 122.006, "points": 255}, {"year": "2020", "avg": 121.846, "points": 257}, {"year": "2021", "avg": 129.877, "points": 258}, {"year": "2022", "avg": 138.027, "points": 257}, {"year": "2023", "avg": 151.99, "points": 255}, {"year": "2024", "avg": 163.852, "points": 256}, {"year": "2025", "avg": 169.043, "points": 255}, {"year": "2026", "avg": 184.237, "points": 183}]}}}