| 变量 | 样本量 | 平均值 | 标准差 | 最小值 | 最大值 |
| ERS | 360 | 0.0041386 | 0.00251 | 0.0013051 | 0.014268 |
| Yc | 360 | 7853.561 | 4986.732 | 816.51 | 368270.81 |
| GTI | 360 | 69421.11 | 90172.31 | 437 | 593,000 |
| CGDP | 360 | 5906.478 | 5844.26 | 255.47 | 36418.32 |
| NP | 360 | 165.854 | 189.815 | 5.19 | 823.76 |
| R&D | 360 | 3,460,000 | 4,270,000 | 57,760 | 26,300,000 |
| LP | 360 | 337,000 | 92094.85 | 135,000 | 861,000 |