condition	mean	min	max
4 h after light	7.6757	7.327710000000001	7.867789999999999
8 h after light	8.393296666666666	8.29298	8.482619999999999
12 h after light	8.595713333333332	8.440339999999999	8.71556
4 h after dark	7.823533333333334	7.57389	8.025780000000001
8 h after dark	7.598456666666667	7.301410000000001	7.92555
12 h after dark	7.52179	7.373880000000001	7.66525