   −0.0000                                        −0.0000                                         (0.0000)                                       (0.000)                                       (0.0000)                                       (0.000)                                    (0.000)                                        (0.000)   Other cities                          0.00000                                        −0.0000                                       −0.0000                                        0.0000                                     0.00e-00                                       −0.0000[\*\*\*](#TFN00){ref-type="table-fn"}   *weight = inverse distance*           (0.00000)                                      (0.0000)                                      (0.0000)                                       (0.000)                                    (0.00000)                                      (0.0000)   Wuhan                                 0.00000                                        0.0000                                        0.000                                          0.000[\*](#TFN00){ref-type="table-fn"}     0.00000                                        0.000[\*\*](#TFN00){ref-type="table-fn"}   *weight = inverse distance*           (0.0000)                                       (0.0000)                                      (0.000)                                        (0.000)                                    (0.00000)                                      (0.0000)   Wuhan                                 0.00000[\*\*\*](#TFN00){ref-type="table-fn"}   0.00000                                       0.00000[\*\*\*](#TFN00){ref-type="table-fn"}   0.00000                                    −0.0000[\*\*](#TFN00){ref-type="table-fn"}     −0.000