condition	mean	min	max
4 h after light	8.147253333333333	8.06939	8.22979
8 h after light	8.305573333333333	8.12492	8.426219999999999
12 h after light	8.576573333333334	8.532060000000001	8.63435
4 h after dark	8.812326666666667	8.77631	8.85028
8 h after dark	8.53438	8.436580000000001	8.58704
12 h after dark	8.46016	8.41648	8.52619