condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.011969666666666668 0.0 0.035909 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0