The top 15 countries with the most scholars ranked by the betweenness centrality, data extracted from journals Chum, LLC/DSH and DHQ, 1966–2017
| Total scholar | Co-authored % | International co-authored % | No. scholar on the network | Betweenness centrality (average no. of pairs) | ||
|---|---|---|---|---|---|---|
| 1 | Belgium | 49 | 65.3% | 22.5% | 2 | 7521.57 |
| 2 | Canada | 199 | 76.9% | 40.7% | 54 | 4233.65 |
| 3 | UK | 461 | 69.9% | 36.4% | 126 | 3713.76 |
| 4 | Italy | 103 | 77.7% | 25.2% | 14 | 2715.79 |
| 5 | USA | 1,044 | 65.2% | 15.7% | 206 | 2088.80 |
| 6 | Norway | 31 | 48.4% | 19.4% | 4 | 1884.98 |
| 7 | Germany | 187 | 75.4% | 30.0% | 24 | 1036.80 |
| 8 | Spain | 74 | 93.2% | 73.0% | 16 | 926.55 |
| 9 | Netherlands | 117 | 75.2% | 29.1% | 15 | 733.74 |
| 10 | France | 151 | 69.5% | 15.2% | 8 | 0 |
| 11 | Japan | 72 | 94.4% | 18.1% | 1 | 0 |
| 12 | Australia | 64 | 73.4% | 45.3% | 4 | 0 |
| 13 | China | 55 | 87.3% | 20.0% | 1 | 0 |
| 14 | Finland | 35 | 77.1% | 54.3% | 7 | 0 |
| 15 | Switzerland | 32 | 68.8% | 18.8% | 0 | 0 |
| Total scholar | Co-authored % | International co-authored % | No. scholar on the network | Betweenness centrality (average no. of pairs) | ||
|---|---|---|---|---|---|---|
| 1 | Belgium | 49 | 65.3% | 22.5% | 2 | 7521.57 |
| 2 | Canada | 199 | 76.9% | 40.7% | 54 | 4233.65 |
| 3 | UK | 461 | 69.9% | 36.4% | 126 | 3713.76 |
| 4 | Italy | 103 | 77.7% | 25.2% | 14 | 2715.79 |
| 5 | USA | 1,044 | 65.2% | 15.7% | 206 | 2088.80 |
| 6 | Norway | 31 | 48.4% | 19.4% | 4 | 1884.98 |
| 7 | Germany | 187 | 75.4% | 30.0% | 24 | 1036.80 |
| 8 | Spain | 74 | 93.2% | 73.0% | 16 | 926.55 |
| 9 | Netherlands | 117 | 75.2% | 29.1% | 15 | 733.74 |
| 10 | France | 151 | 69.5% | 15.2% | 8 | 0 |
| 11 | Japan | 72 | 94.4% | 18.1% | 1 | 0 |
| 12 | Australia | 64 | 73.4% | 45.3% | 4 | 0 |
| 13 | China | 55 | 87.3% | 20.0% | 1 | 0 |
| 14 | Finland | 35 | 77.1% | 54.3% | 7 | 0 |
| 15 | Switzerland | 32 | 68.8% | 18.8% | 0 | 0 |