n site bond delta_site err delta_bond err 6 0.02194021 0.01443205 0.609 0.002 0.633 0.005 7 0.01162306 0.00808368 0.705 0.002 0.829 0.005 8 0.00576991 0.00420207 0.797 0.004 0.960 0.002 9 0.00480839 0.0037006865 0.868 0.006 0.984 0.002