condition	mean	min	max
4 h after light	6.08552	5.87328	6.48613
8 h after light	6.084033333333333	6.02072	6.17419
12 h after light	6.288053333333334	6.17285	6.416980000000001
4 h after dark	6.459443333333334	6.1813	6.7737300000000005
8 h after dark	6.3655333333333335	6.178380000000001	6.55934
12 h after dark	6.24143	6.11259	6.4743699999999995