condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.021919833333333333 0.0 0.131519 10 h after light 0.0 0.0 0.0 14 h after light 0.025371 0.0 0.152226 18 h after light 0.02181066666666667 0.0 0.130864 2 h after dark 0.0 0.0 0.0