condition	mean	min	max
4 h after light	7.872673333333333	7.37258	8.258939999999999
8 h after light	8.20808	7.8767	8.415230000000001
12 h after light	8.30556	8.15723	8.420869999999999
4 h after dark	8.097756666666665	7.8864399999999995	8.30301
8 h after dark	8.21919	7.985239999999999	8.40848
12 h after dark	8.214973333333333	8.139439999999999	8.29531