condition	mean	min	max
4 h after light	9.5	9.5	9.5
8 h after light	11.75	2.9	20.6
12 h after light	19.799999999999997	2.8	36.8
4 h after dark	20.05	11.8	28.3
8 h after dark	40.25	24.0	56.5
12 h after dark	18.7	8.9	28.5