condition	mean	min	max
0 h after light	8.83991	7.97939	9.70043
4 h after light	8.685395	7.84011	9.53068
8 h after light	6.474765	6.34101	6.60852
4 h after dark	10.0284	9.024	11.0328
8 h after dark	8.713055	8.18677	9.23934
12 h after dark	8.453565	7.09054	9.81659