condition	mean	min	max
4 h after light	7.6	7.6	7.6
8 h after light	38.3	14.0	62.6
12 h after light	30.15	22.8	37.5
4 h after dark	69.25	48.8	89.7
8 h after dark	41.4	34.8	48.0
12 h after dark	63.3	56.4	70.2