condition mean min max 4 h after light 6.883785 6.87389 6.89368 8 h after light 5.341595 3.76423 6.91896 12 h after light 4.7935 4.26889 5.31811 4 h after dark 3.08818 1.24512 4.35878 8 h after dark 6.2692966666666665 4.30939 8.04336 12 h after dark 3.947496666666667 1.4926 5.91674