condition	mean	min	max
4 h after light	8.635685	8.29879	8.97258
8 h after light	8.456724999999999	8.19061	8.72284
12 h after light	9.171305	8.41964	9.92297
4 h after dark	8.466655	7.97924	8.95407
8 h after dark	8.35763	8.09293	8.62233
12 h after dark	8.87805	8.80049	8.95561