| 变量 | N | 均值 | 标准差 | 最小值 | 最大值 |
| DZT | 813 | 0.366289 | 1.670805 | 0 | 38.25 |
| ZD | 813 | 1.877043 | 3.447355 | 0.032379 | 46.759494 |
| TURN | 813 | 0.014713 | 0.003190 | 0.001509 | 0.030191 |
| PB | 813 | 27.20664 | 9.009114 | 6 | 64 |
| PBBX | 813 | −0.967944 | 2.109024 | −15.51 | 7 |
| ZTBX | 813 | 1.892277 | 1.865171 | −10.55 | 8.55 |
| GD | 813 | 5.205412 | 2.108129 | 1 | 15 |
| LBBX | 813 | 2.876213 | 3.436259 | −10.19 | 15.02 |
| BDI | 813 | 1.813252 | 0.753696 | 0.384438 | 12.488865 |