condition mean min max 4 h after light 14049.367776666668 10118.97333 20653.08 8 h after light 8891.792776666667 4690.035 16730.31333 12 h after light 4512.467777666667 1871.753333 7389.986667 1.5 h after dark 3934.441111333333 2807.33 4540.306667 5.5 h after dark 9674.994446666666 6360.07 12245.79667 9.5 h after dark 10897.858886666667 9574.22 13110.79333