condition	mean	min	max
4 h after light	14.811038	14.577886	15.04419
8 h after light	13.0822495	12.082383	14.082116
12 h after light	12.741863500000001	11.894521	13.589206
4 h after dark	16.906807	14.864748	18.948866
8 h after dark	15.699398500000001	13.403742	17.995055
12 h after dark	13.291517	13.291517	13.291517