[
  {
    "line_no": "IL-202607-001",
    "hospital_id": "H001",
    "period": "2026-07",
    "model_code": "thorax_xray",
    "billed_count": 2,
    "amount": 12000
  },
  {
    "line_no": "IL-202607-002",
    "hospital_id": "H002",
    "period": "2026-07",
    "model_code": "joint_angle",
    "billed_count": 2,
    "amount": 15000
  },
  {
    "line_no": "IL-202607-003",
    "hospital_id": "H003",
    "period": "2026-07",
    "model_code": "abdomen_us",
    "billed_count": 2,
    "amount": 18000
  },
  {
    "line_no": "IL-202607-004",
    "hospital_id": "H005",
    "period": "2026-07",
    "model_code": "thorax_xray",
    "billed_count": 3,
    "amount": 36000
  },
  {
    "line_no": "IL-202607-005",
    "hospital_id": "H006",
    "period": "2026-07",
    "model_code": "thorax_xray",
    "billed_count": 2,
    "amount": 0
  },
  {
    "line_no": "IL-202607-006",
    "hospital_id": "H001",
    "period": "2026-07",
    "model_code": "cardiac_vhs",
    "billed_count": 0,
    "amount": 0
  },
  {
    "line_no": "IL-202607-007",
    "hospital_id": "H002",
    "period": "2026-07",
    "model_code": "abdomen_us",
    "billed_count": 1,
    "amount": null
  },
  {
    "line_no": "IL-202606-011",
    "hospital_id": "H001",
    "period": "2026-06",
    "model_code": "thorax_xray",
    "billed_count": 5,
    "amount": 48000
  },
  {
    "line_no": "IL-202606-012",
    "hospital_id": "H002",
    "period": "2026-06",
    "model_code": "joint_angle",
    "billed_count": 4,
    "amount": 45000
  },
  {
    "line_no": "IL-202606-013",
    "hospital_id": "H003",
    "period": "2026-06",
    "model_code": "abdomen_us",
    "billed_count": 3,
    "amount": 36000
  },
  {
    "line_no": "IL-202607-008",
    "hospital_id": "H003",
    "period": "2026-07",
    "model_code": "cardiac_vhs",
    "billed_count": 1,
    "amount": 0
  }
]