condition	mean	min	max
4 h after light	5.98887	5.76516	6.21258
8 h after light	5.54518	5.00981	6.08055
12 h after light	6.266355	6.19945	6.33326
4 h after dark	7.24269	6.8839	7.48864
8 h after dark	6.7677266666666664	6.58511	6.88629
12 h after dark	5.605066666666667	5.21816	5.90957