condition	mean	min	max
4 h after light	7.369656666666667	7.266	7.42647
8 h after light	7.33726	7.272989999999999	7.40385
12 h after light	7.708286666666667	7.682410000000001	7.7587
4 h after dark	7.95229	7.871289999999999	8.02955
8 h after dark	8.04583	7.99344	8.10599
12 h after dark	8.304743333333333	8.19711	8.44635