condition mean min max 4 h after light 2.27669 2.00703 2.54635 8 h after light 1.6736 1.64457 1.70263 12 h after light 2.19351 1.87959 2.50743 4 h after dark 1.1217133333333333 1.01564 1.18899 8 h after dark 5.43828 4.5944 6.35344 12 h after dark 2.1996866666666666 2.02838 2.29423