condition	mean	min	max
4 h after light	7469.8531665	7262.89707	7676.809263
8 h after light	7098.7320469999995	6596.02478	7601.439314
12 h after light	7928.318139	7682.232057	8174.404221
4 h after dark	8372.511340500001	7728.607499	9016.415182
8 h after dark	7946.0196225	6619.114881	9272.924364
12 h after dark	7646.385903	7646.385903	7646.385903