condition	mean	min	max
4 h after light	6.4	6.4	6.4
8 h after light	7.45	4.9	10.0
12 h after light	36.15	15.3	57.0
4 h after dark	44.95	38.4	51.5
8 h after dark	30.4	7.8	53.0
12 h after dark	20.0	7.7	32.3