condition	mean	min	max
4 h after light	8.0558135	7.820455	8.291172
8 h after light	7.495972500000001	7.451005	7.54094
12 h after light	8.5992885	8.045722	9.152855
4 h after dark	7.8858495	7.820455	7.951244
8 h after dark	7.7882685	7.598828	7.977709
12 h after dark	7.820455	7.820455	7.820455