| 解释变量 | 系数估计值 | 标准误差 | T值 | P值 |
| ZZCZZL | 2.137384 | 0.8017895 | 2.67 | 0.010 |
| GPM | 1.17956 | 0.53317 | 2.21 | 0.031 |
| SSNL | 1.62585 | 0.7321349 | 2.22 | 0.030 |
| CONS | −1.302544 | 0.6393761 | −2.04 | 0.046 |