condition	mean	min	max
4 h after light	34.8274	31.7706	37.8842
8 h after light	20.36185	18.9329	21.7908
12 h after light	6.87619	6.16239	7.58999
4 h after dark	6.388036666666666	6.14656	6.80098
8 h after dark	12.6911	12.2923	13.2416
12 h after dark	22.8619	20.9253	24.1067