condition	mean	min	max
4 h after light	3.9	3.9	3.9
8 h after light	8.25	7.5	9.0
12 h after light	32.7	13.3	52.1
4 h after dark	21.45	11.0	31.9
8 h after dark	38.1	26.3	49.9
12 h after dark	19.900000000000002	6.7	33.1