{"departments": ["Agricultural & Biosystems", "Civil & Structural", "Mechanical & Production"], "counts": [7, 49, 20], "colors": ["#27ae60", "#3498db", "#e74c3c"], "percentages": [9.2, 64.5, 26.3], "total_students": 76, "last_updated": "2026-08-24 12:39:17", "status": "success", "source": "database"}