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 0.03963233333333333 0.0 0.118897 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0