condition	mean	min	max
4 h after light	5.918435000000001	5.48845	6.34842
8 h after light	6.3980049999999995	5.90737	6.88864
12 h after light	5.0986899999999995	4.53752	5.65986
4 h after dark	9.80907	8.64364	10.9745
8 h after dark	8.585335	8.31683	8.85384
12 h after dark	7.89713	7.58727	8.20699