condition	mean	min	max
4 h after light	7.356269999999999	6.84425	7.737419999999999
8 h after light	8.097733333333334	7.899260000000001	8.36465
12 h after light	7.8771466666666665	7.49264	8.24744
4 h after dark	7.647513333333333	7.22774	8.00807
8 h after dark	7.442076666666667	6.929860000000001	7.7822
12 h after dark	7.30241	6.92253	7.77234