condition	mean	min	max
4 h after light	9.709676666666667	9.66569	9.76125
8 h after light	9.51443	9.4715	9.59858
12 h after light	8.47615	8.37327	8.59475
4 h after dark	9.33358	9.26015	9.46539
8 h after dark	9.3613	9.236360000000001	9.469710000000001
12 h after dark	9.45877	9.35617	9.62909