condition mean min max 4 h after light 6.09603 4.93633 7.25573 8 h after light 5.8719 4.67754 7.06626 12 h after light 7.272460000000001 6.9878 7.55712 4 h after dark 10.31428 6.89044 12.0493 8 h after dark 4.85644 3.83357 6.02379 12 h after dark 5.178306666666667 1.89704 7.13755