Active countries
| Country | Centrality | Amount |
| Sweden* | 0.37 | 176 |
| USA* | 0.29 | 2463 |
| UK* | 0.27 | 1027 |
| Canada* | 0.21 | 514 |
| Saudi* | 0.17 | 363 |
| Pakistan* | 0.13 | 270 |
| Finland* | 0.12 | 108 |
| Belgium* | 0.12 | 150 |
| Mexico* | 0.12 | 150 |
| India | 0.08 | 147 |
| Brazil | 0.08 | 147 |
| Italy | 0.08 | 382 |
| Turkey | 0.08 | 156 |
| Australia | 0.07 | 612 |
| Spain | 0.07 | 432 |
| Netherlands | 0.06 | 293 |
| Germany | 0.06 | 358 |
| France | 0.06 | 220 |
| Singapore | 0.03 | 399 |
| P.R.China | 0.02 | 1860 |
(Pivotal points: C≥0.1).