condition	mean	min	max
4 h after light	7.705820000000001	7.28577	8.12587
8 h after light	5.849525	5.7897	5.90935
12 h after light	6.490935	6.10375	6.87812
4 h after dark	6.62803	6.27051	6.98555
8 h after dark	7.120305	6.64525	7.59536
12 h after dark	6.78655	6.43325	7.13985