condition	mean	min	max
4 h after light	3.0	3.0	3.0
8 h after light	15.5	9.9	21.1
12 h after light	5.199999999999999	2.2	8.2
4 h after dark	12.15	2.3	22.0
8 h after dark	11.6	3.5	19.7
12 h after dark	16.1	4.4	27.8