condition	mean	min	max
0 h after light	8.382840000000002	8.25209	8.51359
4 h after light	8.444189999999999	7.78079	9.10759
8 h after light	9.96238	9.01716	10.9076
4 h after dark	12.119399999999999	11.6585	12.5803
8 h after dark	8.649305	8.4912	8.80741
12 h after dark	7.6057950000000005	7.33958	7.87201