condition	mean	min	max
4 h after light	12.4	12.4	12.4
8 h after light	23.4	13.0	33.8
12 h after light	24.85	21.6	28.1
4 h after dark	21.35	6.5	36.2
8 h after dark	4.75	4.5	5.0
12 h after dark	2.8	2.4	3.2