condition	mean	min	max
4 h after light	7.32585	7.18266	7.4052
8 h after light	7.284126666666666	7.0412300000000005	7.42093
12 h after light	7.411336666666666	7.2857899999999995	7.565239999999999
4 h after dark	7.53516	7.41816	7.69658
8 h after dark	7.308983333333334	7.28016	7.3559600000000005
12 h after dark	7.35264	7.26112	7.42967