condition	mean	min	max
4 h after light	0.8	0.8	0.8
8 h after light	10.05	6.6	13.5
12 h after light	21.4	13.6	29.2
4 h after dark	36.0	31.6	40.4
8 h after dark	20.4	15.5	25.3
12 h after dark	3.05	1.8	4.3