condition	mean	min	max
4 h after light	7.497296666666666	7.28607	7.631589999999999
8 h after light	7.69647	7.57342	7.8498399999999995
12 h after light	7.757393333333334	7.533180000000001	7.9741100000000005
4 h after dark	7.521123333333334	7.39752	7.67944
8 h after dark	7.25881	7.22341	7.3017
12 h after dark	7.168576666666667	7.08812	7.240989999999999