condition	mean	min	max
4 h after light	20.6	20.6	20.6
8 h after light	11.2	10.0	12.4
12 h after light	15.9	9.5	22.3
4 h after dark	18.3	6.8	29.8
8 h after dark	6.05	3.9	8.2
12 h after dark	21.8	13.1	30.5