condition	mean	min	max
4 h after light	19.9	19.9	19.9
8 h after light	19.299999999999997	17.2	21.4
12 h after light	6.75	5.3	8.2
4 h after dark	3.15	2.9	3.4
8 h after dark	7.1	4.2	10.0
12 h after dark	7.300000000000001	3.3	11.3