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Publication rate depending on the country.
| Country | Publications (%) | Centrality | Degree | Half-life |
|---|---|---|---|---|
| United States | 49 (20.94%) | 0.36 | 20 | 1.5 |
| England | 30 (12.82%) | 0.26 | 15 | 1.5 |
| China | 21 (8.97%) | 0.05 | 8 | 0.5 |
| Australia | 18 (7.69%) | 0.16 | 12 | 1.5 |
| Spain | 16 (6.84%) | 0.10 | 7 | 0.5 |
| Netherlands | 13 (5.56%) | 0.10 | 6 | 1.5 |
| Germany | 12 (5.13%) | 0.00 | 3 | 0.5 |
| Japan | 11 (4.70%) | 0.01 | 3 | 2.5 |
| Brazil | 8 (3.42%) | 0.04 | 2 | 1.5 |
| Switzerland | 8 (3.42%) | 0.03 | 7 | 2.5 |
