condition mean min max 4 h after light 4.52035 4.45028 4.591 8 h after light 4.69556 4.58475 4.902340000000001 12 h after light 4.61768 4.5305599999999995 4.77219 4 h after dark 4.533716666666667 4.52208 4.5494699999999995 8 h after dark 4.5527 4.51863 4.57779 12 h after dark 4.461166666666667 4.37894 4.57565