condition	mean	min	max
4 h after light	45.4	45.4	45.4
8 h after light	40.4	8.3	72.5
12 h after light	9.45	8.1	10.8
4 h after dark	6.5	5.0	8.0
8 h after dark	20.55	6.0	35.1
12 h after dark	18.05	6.6	29.5