| Country | Long-Stay | Short-Stay/Workshop |
|---|---|---|
| Algeria | 0 | 1 |
| Argentina | 0 | 1 |
| Australia | 2 | 1 |
| Austria | 0 | 1 |
| Belgium | 0 | 4 |
| Brazil | 2 | 1 |
| Canada | 7 | 14 |
| China | 1 | 2 |
| Czech Republic | 2 | 0 |
| Denmark | 1 | 3 |
| Egypt | 0 | 1 |
| Finland | 0 | 4 |
| France | 21 | 76 |
| Germany | 11 | 44 |
| Ghana | 0 | 3 |
| Greece | 1 | 1 |
| Hong Kong | 1 | 0 |
| Hungary | 1 | 2 |
| India | 5 | 1 |
| Iran | 2 | 1 |
| Ireland | 0 | 1 |
| Israel | 5 | 18 |
| Italy | 3 | 21 |
| Japan | 11 | 17 |
| Korea | 0 | 6 |
| Mexico | 1 | 3 |
| Netherlands | 5 | 23 |
| New Zealand | 1 | 1 |
| Nigeria | 0 | 2 |
| Norway | 0 | 4 |
| Poland | 0 | 4 |
| Portugal | 0 | 2 |
| Romania | 0 | 1 |
| Russia | 11 | 9 |
| Singapore | 0 | 2 |
| Slovenia | 1 | 1 |
| Spain | 1 | 5 |
| Sweden | 2 | 8 |
| Switzerland | 2 | 14 |
| Taiwan | 0 | 1 |
| Turkey | 0 | 2 |
| Ukraine | 1 | 1 |
| United Kingdom (Cambridge) | 30 | 87 |
| United Kingdom (Non-Cambridge) | 63 | 232 |
| USA | 77 | 141 |
| Uzbekistan | 1 | 0 |
| Yugoslavia | 0 | 1 |
| Total | 272 | 768 |