condition	mean	min	max
4 h after light	2.8	2.8	2.8
8 h after light	33.45	20.8	46.1
12 h after light	20.6	5.7	35.5
4 h after dark	44.15	17.3	71.0
8 h after dark	12.15	9.5	14.8
12 h after dark	4.7	2.9	6.5