condition	mean	min	max
4 h after light	7.645462500000001	7.584099	7.706826
8 h after light	6.975868999999999	6.693465	7.258273
12 h after light	7.362031	7.362031	7.362031
4 h after dark	7.3501985	7.123445	7.576952
8 h after dark	6.9035515	6.367083	7.44002
12 h after dark	8.27989	8.27989	8.27989