| Year | Moran’s I | Z | P-value |
| 2014 | 0.531 | 3.722 | 0.000 |
| 2015 | 0.496 | 3.498 | 0.000 |
| 2016 | 0.513 | 3.617 | 0.000 |
| 2017 | 0.495 | 3.505 | 0.000 |
| 2018 | 0.504 | 3.555 | 0.000 |
| 2019 | 0.492 | 3.486 | 0.000 |
| 2020 | 0.495 | 3.511 | 0.000 |