| Entity | Total | Unique |
| COVID | 253 | 253 |
| CHINA | 228 | 228 |
| DATA | 184 | 57 |
| ICT | 159 | 157 |
| INDUSTRY | 156 | 156 |
| ELSEVIER | 153 | 153 |
| PAPER | 139 | 139 |
| ECONOMY | 138 | 138 |
| PANDEMIC | 132 | 132 |
| ADDITION | 127 | 127 |