condition	mean	min	max
4 h after light	7.2508799999999995	7.167269999999999	7.308039999999999
8 h after light	7.3042066666666665	7.218889999999999	7.35163
12 h after light	7.20567	7.1268199999999995	7.33932
4 h after dark	8.085693333333333	7.79012	8.50651
8 h after dark	8.32823	7.97301	8.605260000000001
12 h after dark	8.853786666666666	8.53627	9.13262