condition	mean	min	max
4 h after light	6.5	6.5	6.5
8 h after light	16.5	13.0	20.0
12 h after light	43.75	41.5	46.0
4 h after dark	35.4	30.3	40.5
8 h after dark	26.85	10.1	43.6
12 h after dark	14.75	5.9	23.6