[ { "period": "2026/01", "booking_class": "personnel", "booking_count": 2, "net_amount": 70 }, { "period": "2026/02", "booking_class": "allocation", "booking_count": 1, "net_amount": 45 }, { "period": "2026/02", "booking_class": "other", "booking_count": 1, "net_amount": 20 } ]