condition	mean	min	max
4 h after light	6.4991	6.07868	6.97268
8 h after light	6.04083	5.82378	6.3714
12 h after light	6.122803333333334	6.03335	6.28976
4 h after dark	6.317186666666667	6.22984	6.48193
8 h after dark	6.50207	6.43396	6.63475
12 h after dark	6.82319	6.684410000000001	6.9856