condition	mean	min	max
4 h after light	4.2	4.2	4.2
8 h after light	15.2	12.7	17.7
12 h after light	23.95	9.5	38.4
4 h after dark	19.2	2.4	36.0
8 h after dark	6.3	5.8	6.8
12 h after dark	22.85	9.1	36.6