condition	mean	min	max
4 h after light	8.854583333333334	8.53987	9.038680000000001
8 h after light	7.471806666666667	6.9584600000000005	7.830539999999999
12 h after light	6.993213333333333	6.599069999999999	7.19384
4 h after dark	6.0106	5.881130000000001	6.268269999999999
8 h after dark	6.625436666666667	6.324330000000001	6.89376
12 h after dark	7.28711	7.04303	7.56595