condition	mean	min	max
0 h after light	8.319669999999999	8.09728	8.54206
4 h after light	6.49127	6.39525	6.58729
8 h after light	5.545529999999999	5.0786	6.01246
4 h after dark	5.21059	4.91498	5.5062
8 h after dark	6.458345	6.28255	6.63414
12 h after dark	7.87548	7.38571	8.36525