condition	mean	min	max
4 h after light	12.42425	10.8323	14.0162
8 h after light	9.37965	8.62	10.1393
12 h after light	17.8345	17.3937	18.2753
4 h after dark	14.742	13.921	15.563
8 h after dark	15.19945	15.1369	15.262
12 h after dark	14.330449999999999	13.1061	15.5548