condition	mean	min	max
4 h after light	8.368826666666667	8.18942	8.473239999999999
8 h after light	8.798746666666666	8.55904	8.95903
12 h after light	8.71532	8.61847	8.79442
4 h after dark	8.585106666666666	8.45485	8.74606
8 h after dark	8.571573333333333	8.49958	8.66995
12 h after dark	8.356340000000001	8.298960000000001	8.4626