condition	mean	min	max
4 h after light	14.8926	14.615	15.1702
8 h after light	12.3277	11.6072	13.0482
12 h after light	13.15995	12.4855	13.8344
4 h after dark	17.8922	16.7259	19.0585
8 h after dark	17.41505	17.2645	17.5656
12 h after dark	18.3863	18.0654	18.7072