condition	mean	min	max
4 h after light	7.293726666666666	7.068239999999999	7.60894
8 h after light	7.212466666666667	6.86925	7.51889
12 h after light	7.136663333333333	6.97368	7.247489999999999
4 h after dark	7.27117	6.9185	7.49728
8 h after dark	7.30383	6.95478	7.65612
12 h after dark	6.845956666666666	6.8430100000000005	6.851189999999999