condition	mean	min	max
4 h after light	8.234113333333333	7.91162	8.7282
8 h after light	8.234086666666666	7.94223	8.64758
12 h after light	8.1919	7.7860000000000005	8.61908
4 h after dark	7.93097	7.63318	8.1911
8 h after dark	7.71828	7.7160899999999994	7.722589999999999
12 h after dark	7.624986666666667	7.386139999999999	7.88572