condition	mean	min	max
4 h after light	6.5	6.5	6.5
8 h after light	6.550000000000001	3.2	9.9
12 h after light	18.45	6.8	30.1
4 h after dark	3.8	3.0	4.6
8 h after dark	18.4	10.3	26.5
12 h after dark	8.9	8.0	9.8