condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 4.176375 2.57802 5.77473 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 1.707065 0.0 3.41413