condition	mean	min	max
4 h after light	49.9	49.9	49.9
8 h after light	73.2	69.2	77.2
12 h after light	67.6	57.4	77.8
4 h after dark	57.15	51.3	63.0
8 h after dark	40.85	24.0	57.7
12 h after dark	59.05	58.8	59.3