condition	mean	min	max
0 h after light	18.13075	17.8531	18.4084
4 h after light	11.399149999999999	10.8189	11.9794
8 h after light	11.92775	11.8792	11.9763
4 h after dark	11.52545	10.9054	12.1455
8 h after dark	13.64855	12.8876	14.4095
12 h after dark	12.688165	8.67783	16.6985