condition	mean	min	max
4 h after light	7.381106666666667	7.2310300000000005	7.53728
8 h after light	7.462463333333334	7.2939300000000005	7.61366
12 h after light	7.34675	7.193280000000001	7.474989999999999
4 h after dark	7.650973333333334	7.497960000000001	7.73405
8 h after dark	7.65313	7.54098	7.83599
12 h after dark	7.4756366666666665	7.23952	7.674510000000001