condition	mean	min	max
4 h after light	15.378592000000001	14.157928	16.599256
8 h after light	13.216109	12.27429	14.157928
12 h after light	14.413184000000001	13.291517	15.534851
4 h after dark	13.699522	12.883935	14.515109
8 h after dark	10.449609	9.203286	11.695932
12 h after dark	17.002174	17.002174	17.002174