condition	mean	min	max
4 h after light	8.41804	8.123510000000001	8.636339999999999
8 h after light	8.57888	8.51988	8.646410000000001
12 h after light	7.802973333333333	7.712619999999999	7.9161
4 h after dark	8.717666666666666	8.58853	8.8497
8 h after dark	8.69026	8.56851	8.782789999999999
12 h after dark	8.31578	7.979080000000001	8.573889999999999