| Research topic field | Proportion | Article number |
| society | 22.22% | 6 |
| politics | 44.44% | 12 |
| others | 7.41% | 2 |
| military | 7.41% | 2 |
| finance | 7.41% | 2 |
| business | 3.70% | 1 |
| climate | 7.41% | 2 |
| health | 3.70% | 1 |