condition	mean	min	max
4 h after light	7.9	7.9	7.9
8 h after light	48.25	44.8	51.7
12 h after light	84.95	60.1	109.8
4 h after dark	13.65	10.5	16.8
8 h after dark	40.2	17.0	63.4
12 h after dark	11.4	10.3	12.5