condition	mean	min	max
4 h after light	7.0901700000000005	6.25722	7.92312
8 h after light	6.17458	5.62519	6.72397
12 h after light	7.691050000000001	7.19522	8.18688
4 h after dark	7.655743333333333	6.995	8.14332
8 h after dark	9.662096666666667	9.264	10.1783
12 h after dark	7.744466666666667	7.39514	7.94386