condition	mean	min	max
4 h after light	8.44018	8.39976	8.51558
8 h after light	7.88119	7.754460000000001	7.96518
12 h after light	8.241093333333334	8.20318	8.31207
4 h after dark	8.799006666666665	8.692969999999999	8.86943
8 h after dark	8.22121	7.963369999999999	8.536389999999999
12 h after dark	8.010773333333333	7.96276	8.097660000000001