condition	mean	min	max
4 h after light	6.9	6.9	6.9
8 h after light	13.45	6.7	20.2
12 h after light	5.8	4.5	7.1
4 h after dark	21.0	9.9	32.1
8 h after dark	13.15	5.2	21.1
12 h after dark	12.600000000000001	3.6	21.6