condition	mean	min	max
4 h after light	17.8958	16.9571	18.8345
8 h after light	10.2782	10.2722	10.2842
12 h after light	8.43076	8.38206	8.47946
4 h after dark	13.2924	12.3831	14.1016
8 h after dark	22.4432	21.9816	22.7714
12 h after dark	24.647066666666667	23.8947	25.6853