condition	mean	min	max
4 h after light	479.6	479.6	479.6
8 h after light	439.7	432.0	447.4
12 h after light	496.5	451.5	541.5
4 h after dark	649.7	578.6	720.8
8 h after dark	566.65	541.3	592.0
12 h after dark	518.25	490.2	546.3