| Year | First-stage | Third-stage |
| Efficiency value | Efficiency value | |
| 2016 | 0.7422 | 0.8711 |
| 2017 | 0.6875 | 0.7925 |
| 2018 | 1.5583 | 0.7894 |
| 2019 | 0.7009 | 0.8108 |
| 2020 | 0.6625 | 0.7955 |