condition	mean	min	max
4 h after light	8.10275	8.02064	8.159930000000001
8 h after light	7.978503333333333	7.9694899999999995	7.983110000000001
12 h after light	8.077676666666667	8.015139999999999	8.18661
4 h after dark	7.89546	7.8439	7.92771
8 h after dark	7.995666666666667	7.815410000000001	8.23145
12 h after dark	7.983093333333334	7.9002300000000005	8.067039999999999