{
  "report_id": "100-monthly-membership-usage",
  "status": "validated",
  "version": "1.0",
  "publication": {
    "headline": "El 13,1 % de las cuotas mensuales registra menos de cuatro asistencias",
    "canonical_url": "https://wodbuster.com/observatorio/uso-cuotas-mensuales/",
    "date_modified": "2026-07-18"
  },
  "period": {
    "start": "2025-01-01",
    "end": "2025-12-31"
  },
  "sample": {
    "eligible_centers": 1788,
    "payments": 2313797,
    "largest_center_payment_share_pct": 0.84
  },
  "definitions": {
    "unit": "Pago de una cuota con 25 a 35 días de cobertura.",
    "attendance": "Reserva que finaliza sin baja ni ausencia registrada durante la cobertura de la misma tarifa.",
    "center_balancing": "Cada porcentaje se calcula primero por centro y después se resume entre negocios."
  },
  "rules": {
    "minimum_payments_per_center": 100,
    "minimum_active_months": 6,
    "price_range_eur": [
      10,
      500
    ],
    "usage_bands": [
      "0",
      "1-3",
      "4-7",
      "8-11",
      "12-15",
      "16+"
    ]
  },
  "national": {
    "attendances_per_period": {
      "p25_attendances": 7.0,
      "median_attendances": 8.0,
      "p75_attendances": 10.0
    },
    "zero_attendance": {
      "p25_pct": 1.77,
      "median_pct": 3.41,
      "p75_pct": 7.67
    },
    "one_to_three": {
      "p25_pct": 5.69,
      "median_pct": 8.1,
      "p75_pct": 12.14
    },
    "under_4": {
      "p25_pct": 8.58,
      "median_pct": 13.1,
      "p75_pct": 22.0
    },
    "four_to_seven": {
      "p25_pct": 19.53,
      "median_pct": 26.01,
      "p75_pct": 35.02
    },
    "eight_to_eleven": {
      "p25_pct": 24.57,
      "median_pct": 29.72,
      "p75_pct": 34.73
    },
    "twelve_to_fifteen": {
      "p25_pct": 7.92,
      "median_pct": 15.31,
      "p75_pct": 20.74
    },
    "sixteen_plus": {
      "p25_pct": 1.73,
      "median_pct": 7.84,
      "p75_pct": 16.13
    },
    "eight_plus": {
      "p25_pct": 41.58,
      "median_pct": 57.14,
      "p75_pct": 68.33
    },
    "twelve_plus": {
      "p25_pct": 10.55,
      "median_pct": 23.99,
      "p75_pct": 37.35
    },
    "reserved_under_4": {
      "p25_pct": 6.6,
      "median_pct": 9.53,
      "p75_pct": 14.6
    }
  },
  "by_month": [
    {
      "month": "2025-01-01",
      "centers": 1537,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 11.31,
      "median_8_plus_pct": 60.4,
      "median_12_plus_pct": 26.21
    },
    {
      "month": "2025-02-01",
      "centers": 1579,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 11.11,
      "median_8_plus_pct": 59.93,
      "median_12_plus_pct": 25.53
    },
    {
      "month": "2025-03-01",
      "centers": 1618,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 11.31,
      "median_8_plus_pct": 60.0,
      "median_12_plus_pct": 26.09
    },
    {
      "month": "2025-04-01",
      "centers": 1636,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 11.57,
      "median_8_plus_pct": 58.16,
      "median_12_plus_pct": 24.56
    },
    {
      "month": "2025-05-01",
      "centers": 1666,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 11.67,
      "median_8_plus_pct": 59.56,
      "median_12_plus_pct": 25.31
    },
    {
      "month": "2025-06-01",
      "centers": 1650,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 12.83,
      "median_8_plus_pct": 60.0,
      "median_12_plus_pct": 26.38
    },
    {
      "month": "2025-07-01",
      "centers": 1492,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 16.73,
      "median_8_plus_pct": 52.07,
      "median_12_plus_pct": 21.05
    },
    {
      "month": "2025-08-01",
      "centers": 1462,
      "median_attendances_per_period": 9.0,
      "median_under_4_pct": 11.95,
      "median_8_plus_pct": 62.96,
      "median_12_plus_pct": 29.88
    },
    {
      "month": "2025-09-01",
      "centers": 1692,
      "median_attendances_per_period": 9.0,
      "median_under_4_pct": 10.54,
      "median_8_plus_pct": 63.21,
      "median_12_plus_pct": 28.57
    },
    {
      "month": "2025-10-01",
      "centers": 1726,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 11.27,
      "median_8_plus_pct": 58.42,
      "median_12_plus_pct": 23.08
    },
    {
      "month": "2025-11-01",
      "centers": 1715,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 14.93,
      "median_8_plus_pct": 52.23,
      "median_12_plus_pct": 20.35
    },
    {
      "month": "2025-12-01",
      "centers": 1672,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 13.03,
      "median_8_plus_pct": 54.5,
      "median_12_plus_pct": 22.75
    }
  ],
  "by_active_size": [
    {
      "size_band": "01_UNDER_75",
      "centers": 336,
      "payments": 141309,
      "median_attendances_per_period": 7.0,
      "median_under_4_pct": 19.52,
      "median_8_plus_pct": 40.76,
      "median_12_plus_pct": 9.51,
      "median_zero_attendance_pct": 5.06,
      "largest_center_payment_share_pct": 1.6
    },
    {
      "size_band": "02_75_149",
      "centers": 611,
      "payments": 519447,
      "median_attendances_per_period": 8.0,
      "median_under_4_pct": 12.93,
      "median_8_plus_pct": 55.41,
      "median_12_plus_pct": 21.3,
      "median_zero_attendance_pct": 3.21,
      "largest_center_payment_share_pct": 0.67
    },
    {
      "size_band": "03_150_299",
      "centers": 657,
      "payments": 1045982,
      "median_attendances_per_period": 9.0,
      "median_under_4_pct": 11.54,
      "median_8_plus_pct": 62.52,
      "median_12_plus_pct": 30.9,
      "median_zero_attendance_pct": 3.18,
      "largest_center_payment_share_pct": 0.44
    },
    {
      "size_band": "04_300_PLUS",
      "centers": 184,
      "payments": 607059,
      "median_attendances_per_period": 9.0,
      "median_under_4_pct": 10.93,
      "median_8_plus_pct": 65.17,
      "median_12_plus_pct": 35.86,
      "median_zero_attendance_pct": 3.01,
      "largest_center_payment_share_pct": 3.19
    }
  ],
  "sensitivities": {
    "minimum_200_payments_centers": 1734,
    "minimum_200_payments_under_4": {
      "p25_pct": 8.46,
      "median_pct": 12.94,
      "p75_pct": 21.67
    },
    "full_year_centers": 1424,
    "full_year_under_4": {
      "p25_pct": 7.97,
      "median_pct": 12.11,
      "p75_pct": 19.76
    }
  },
  "quality": {
    "personal_identifiers_extracted": false,
    "center_identifiers_exported": false
  },
  "limitations": [
    "La asistencia depende del registro operativo del centro y no captura servicios sin agenda.",
    "Una cobertura puede incluir pausas, vacaciones, lesiones o usos realizados con otra vía de acceso.",
    "Los periodos pagados no equivalen a personas únicas: una misma persona puede aportar varios meses.",
    "La muestra de clientes WodBuster no es un censo del mercado español."
  ]
}