condition mean min max 4 h after light 2709.6 2709.6 2709.6 8 h after light 4282.4 2414.4 6150.4 12 h after light 8156.85 6526.3 9787.4 4 h after dark 5856.299999999999 2508.3 9204.3 8 h after dark 1937.0 1269.4 2604.6 12 h after dark 990.45 881.5 1099.4