condition	mean	min	max
4 h after light	8.12518	6.9441	9.30626
8 h after light	7.566224999999999	7.1719	7.96055
12 h after light	8.461265000000001	8.19766	8.72487
4 h after dark	11.560133333333333	11.2535	12.15
8 h after dark	11.096233333333334	10.5148	11.8594
12 h after dark	10.095456666666665	8.71042	11.661