condition mean min max 2 h after light 1.57932 1.41751 1.66696 6 h after light 1.9222133333333333 1.91095 1.94062 10 h after light 2.04639 1.96545 2.15152 2 h after dark 3.2495700000000003 3.06963 3.37638 6 h after dark 2.371036666666667 2.34187 2.41634 10 h after dark 2.4793233333333333 2.20822 2.69421