| Project/Year | 2017 | 2018 | 2019 |
| Liquidity Ratio (times) | 3.19 | 2.59 | 3.15 |
| The multiple of interest safeguard | 9.59 | 5.84 | 5.94 |
| Asset-liability ratio | 30.78% | 38.04% | 30.5% |