condition	mean	min	max
4 h after light	6.91188	6.60893	7.1551
8 h after light	7.236066666666667	6.9842699999999995	7.39652
12 h after light	7.35647	7.06118	7.52411
4 h after dark	7.299026666666667	7.107310000000001	7.424989999999999
8 h after dark	7.2523100000000005	7.0045	7.6006
12 h after dark	7.066573333333333	6.89518	7.16147