condition	mean	min	max
4 h after light	7.271053333333334	6.97341	7.45931
8 h after light	7.172969999999999	6.70475	7.4877899999999995
12 h after light	7.1642600000000005	6.6032399999999996	7.47376
4 h after dark	7.274916666666666	6.93347	7.45079
8 h after dark	7.155216666666667	6.77003	7.416180000000001
12 h after dark	7.19294	6.91343	7.4048