condition	mean	min	max
4 h after light	8.0	8.0	8.0
8 h after light	19.9	9.1	30.7
12 h after light	9.2	8.2	10.2
4 h after dark	44.35	19.0	69.7
8 h after dark	10.8	7.9	13.7
12 h after dark	21.7	5.4	38.0