condition	mean	min	max
0 h after light	14.267050000000001	13.8871	14.647
4 h after light	10.677175	9.66525	11.6891
8 h after light	4.72271	3.94268	5.50274
4 h after dark	10.117255	9.34831	10.8862
8 h after dark	15.86745	15.4937	16.2412
12 h after dark	15.49025	14.816	16.1645