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      "ret_cobre_pct": 3.66,
      "ret_dolar_pct": -0.54
    },
    {
      "mes": "2025-04",
      "fecha_cierre": "2025-04-30",
      "cobre": 4.27,
      "dolar": 945.42,
      "ret_cobre_pct": -4.13,
      "ret_dolar_pct": -0.07
    },
    {
      "mes": "2025-05",
      "fecha_cierre": "2025-05-30",
      "cobre": 4.36,
      "dolar": 937.37,
      "ret_cobre_pct": 2.09,
      "ret_dolar_pct": -0.86
    },
    {
      "mes": "2025-06",
      "fecha_cierre": "2025-06-30",
      "cobre": 4.64,
      "dolar": 935.74,
      "ret_cobre_pct": 6.22,
      "ret_dolar_pct": -0.17
    },
    {
      "mes": "2025-07",
      "fecha_cierre": "2025-07-31",
      "cobre": 4.42,
      "dolar": 978.07,
      "ret_cobre_pct": -4.86,
      "ret_dolar_pct": 4.42
    },
    {
      "mes": "2025-08",
      "fecha_cierre": "2025-08-29",
      "cobre": 4.38,
      "dolar": 967.48,
      "ret_cobre_pct": -0.91,
      "ret_dolar_pct": -1.09
    },
    {
      "mes": "2025-09",
      "fecha_cierre": "2025-09-30",
      "cobre": 4.6,
      "dolar": 961.24,
      "ret_cobre_pct": 4.9,
      "ret_dolar_pct": -0.65
    },
    {
      "mes": "2025-10",
      "fecha_cierre": "2025-10-30",
      "cobre": 5.0,
      "dolar": 940.57,
      "ret_cobre_pct": 8.34,
      "ret_dolar_pct": -2.17
    },
    {
      "mes": "2025-11",
      "fecha_cierre": "2025-11-28",
      "cobre": 4.98,
      "dolar": 929.14,
      "ret_cobre_pct": -0.4,
      "ret_dolar_pct": -1.22
    },
    {
      "mes": "2025-12",
      "fecha_cierre": "2025-12-30",
      "cobre": 5.53,
      "dolar": 911.18,
      "ret_cobre_pct": 10.48,
      "ret_dolar_pct": -1.95
    },
    {
      "mes": "2026-01",
      "fecha_cierre": "2026-01-30",
      "cobre": 5.89,
      "dolar": 858.45,
      "ret_cobre_pct": 6.31,
      "ret_dolar_pct": -5.96
    },
    {
      "mes": "2026-02",
      "fecha_cierre": "2026-02-27",
      "cobre": 6.01,
      "dolar": 861.19,
      "ret_cobre_pct": 2.02,
      "ret_dolar_pct": 0.32
    },
    {
      "mes": "2026-03",
      "fecha_cierre": "2026-03-31",
      "cobre": 5.5,
      "dolar": 931.57,
      "ret_cobre_pct": -8.87,
      "ret_dolar_pct": 7.86
    },
    {
      "mes": "2026-04",
      "fecha_cierre": "2026-04-30",
      "cobre": 5.87,
      "dolar": 901.76,
      "ret_cobre_pct": 6.51,
      "ret_dolar_pct": -3.25
    },
    {
      "mes": "2026-05",
      "fecha_cierre": "2026-05-29",
      "cobre": 6.11,
      "dolar": 892.89,
      "ret_cobre_pct": 4.01,
      "ret_dolar_pct": -0.99
    },
    {
      "mes": "2026-06",
      "fecha_cierre": "2026-06-30",
      "cobre": 6.0,
      "dolar": 922.34,
      "ret_cobre_pct": -1.82,
      "ret_dolar_pct": 3.25
    },
    {
      "mes": "2026-07",
      "fecha_cierre": "2026-07-31",
      "cobre": 6.17,
      "dolar": 924.78,
      "ret_cobre_pct": 2.79,
      "ret_dolar_pct": 0.26
    },
    {
      "mes": "2026-08",
      "fecha_cierre": "2026-08-31",
      "cobre": 6.56,
      "dolar": 929.18,
      "ret_cobre_pct": 6.13,
      "ret_dolar_pct": 0.47
    },
    {
      "mes": "2026-09",
      "fecha_cierre": "2026-09-30",
      "cobre": 6.55,
      "dolar": 970.46,
      "ret_cobre_pct": -0.15,
      "ret_dolar_pct": 4.35
    }
  ],
  "fuente": "Banco Central de Chile / Cochilco / mindicador.cl",
  "fuente_url": [
    "https://www.bcentral.cl",
    "https://www.cochilco.cl",
    "https://mindicador.cl"
  ],
  "atribucion": "Banco Central de Chile y Comisión Chilena del Cobre (Cochilco)",
  "licencia": "Datos públicos oficiales; estructuración y modelado bajo licencia CC BY 4.0"
}