condition	mean	min	max
4 h after light	4.5	4.5	4.5
8 h after light	25.4	22.3	28.5
12 h after light	23.0	18.0	28.0
4 h after dark	8.8	2.0	15.6
8 h after dark	29.05	27.6	30.5
12 h after dark	6.25	4.5	8.0