condition	mean	min	max
4 h after light	7.805255000000001	7.40444	8.20607
8 h after light	8.76132	8.67034	8.8523
12 h after light	8.57759	7.45519	9.69999
4 h after dark	13.82405	13.5366	14.1115
8 h after dark	11.66625	11.1691	12.1634
12 h after dark	10.38553	9.77516	10.9959