    Model                                                         Unstandardized coefficients   Standardized coefficients   t-value   Significance      ------------------------------------------------------------- ----------------------------- --------------------------- --------- -------------- -------                                                                 B                             Std Error                   Beta                                                                                                                                                                            Constant                                                      0.000                         0.000                                 00.000         0.000   Bulk-billing rate squared                                     0.000                         0.000                       0.000     00.000         0.000   Bulk-billing rate squared 