condition	mean	min	max
4 h after light	15.006586	14.521468	15.491704
8 h after light	13.291165	12.3608	14.22153
12 h after light	13.791544	13.234307	14.348781
4 h after dark	12.022444	10.393925	13.650963
8 h after dark	13.601753500000001	12.235596	14.967911
12 h after dark	14.893905	14.893905	14.893905