condition	mean	min	max
0 h after light	11.2476	11.0448	11.4504
4 h after light	9.61128	8.23046	10.9921
8 h after light	8.763045	8.759	8.76709
4 h after dark	14.91625	13.2439	16.5886
8 h after dark	14.41205	13.3929	15.4312
12 h after dark	11.6877	10.0369	13.3385