condition	mean	min	max
0 h after light	15.581399999999999	15.3874	15.7754
4 h after light	7.8685	6.47655	9.26045
8 h after light	8.16234	7.51111	8.81357
4 h after dark	11.3361	10.5168	12.1554
8 h after dark	10.461839999999999	9.30548	11.6182
12 h after dark	13.1153	11.8524	14.3782