condition mean min max 4 h after light 3.76072 3.37485 4.14659 8 h after light 2.427665 2.23653 2.6188 12 h after light 2.88556 2.78392 2.9872 4 h after dark 4.238423333333333 4.171 4.36432 8 h after dark 5.862446666666666 5.53606 6.48084 12 h after dark 4.85926 4.7384 5.06279