condition	mean	min	max
4 h after light	8.262129999999999	8.01275	8.39172
8 h after light	7.5011633333333325	7.401089999999999	7.655639999999999
12 h after light	7.40685	7.293760000000001	7.48073
4 h after dark	8.395126666666666	8.37678	8.42747
8 h after dark	9.013013333333333	8.647269999999999	9.40745
12 h after dark	9.593223333333334	9.32873	9.768410000000001