condition	mean	min	max
4 h after light	3.45877	3.25766	3.65988
8 h after light	4.963955	4.90154	5.02637
12 h after light	6.882770000000001	6.76839	6.99715
4 h after dark	8.196110000000001	7.72677	8.91559
8 h after dark	6.63975	6.08965	6.97422
12 h after dark	5.07744	4.92017	5.34244