condition	mean	min	max
4 h after light	7.838035	6.89355	8.78252
8 h after light	7.889060000000001	7.5758	8.20232
12 h after light	8.43206	7.91432	8.9498
4 h after dark	10.444385	9.96747	10.9213
8 h after dark	10.445599999999999	10.324	10.5672
12 h after dark	10.584900000000001	10.58	10.5898