condition	mean	min	max
4 h after light	7.665455	7.07247	8.25844
8 h after light	7.08922	6.97586	7.20258
12 h after light	4.57418	4.26168	4.88668
4 h after dark	5.827326666666667	4.27707	6.62943
8 h after dark	4.52957	3.95247	4.81837
12 h after dark	8.387953333333334	7.68878	8.74177