condition mean min max 4 h after light 10.99004 8.68688 13.2932 8 h after light 17.5598 16.9518 18.1678 12 h after light 16.87415 15.5171 18.2312 4 h after dark 28.452566666666666 26.3581 31.9574 8 h after dark 31.14746666666667 27.3795 33.6938 12 h after dark 13.939499999999999 12.6838 15.4051