condition mean min max 4 h after light 3.660093333333333 3.59792 3.73236 8 h after light 3.6210633333333333 3.5664 3.699 12 h after light 3.61802 3.6026199999999995 3.6414400000000002 4 h after dark 3.6714866666666666 3.5895099999999998 3.8003400000000003 8 h after dark 3.6746966666666667 3.5915800000000004 3.7294400000000003 12 h after dark 3.6430599999999997 3.5662199999999995 3.7423699999999998