condition	mean	min	max
4 h after light	6.6	6.6	6.6
8 h after light	5.2	5.0	5.4
12 h after light	19.9	7.0	32.8
4 h after dark	3.5	2.3	4.7
8 h after dark	5.85	5.4	6.3
12 h after dark	23.65	9.0	38.3