condition	mean	min	max
4 h after light	62.2	62.2	62.2
8 h after light	65.3	65.1	65.5
12 h after light	74.25	51.5	97.0
4 h after dark	56.35	50.2	62.5
8 h after dark	76.15	72.1	80.2
12 h after dark	85.55	78.1	93.0