condition	mean	min	max
4 h after light	8.0721515	7.879171	8.265132
8 h after light	8.109337499999999	7.170736	9.047939
12 h after light	8.495438	8.41471	8.576166
4 h after dark	8.41471	8.41471	8.41471
8 h after dark	9.015055	7.820455	10.209655
12 h after dark	8.261197	8.261197	8.261197