condition	mean	min	max
4 h after light	7.856331	7.583442	8.12922
8 h after light	7.5933965	7.418282	7.768511
12 h after light	7.387283999999999	7.356286	7.418282
4 h after dark	7.255841	7.0934	7.418282
8 h after dark	7.3789774999999995	7.314382	7.443573
12 h after dark	6.838212	6.838212	6.838212