condition	mean	min	max
4 h after light	14.04975	13.7927	14.3068
8 h after light	7.87881	7.05739	8.70023
12 h after light	8.580395	8.32781	8.83298
4 h after dark	15.840900000000001	14.6597	17.4675
8 h after dark	17.045266666666667	16.4306	17.7262
12 h after dark	16.926566666666666	16.0386	18.1282