condition	mean	min	max
4 h after light	65.7	65.7	65.7
8 h after light	58.4	41.8	75.0
12 h after light	61.25	48.6	73.9
4 h after dark	46.15	21.2	71.1
8 h after dark	20.9	18.0	23.8
12 h after dark	23.45	21.5	25.4