| Share of outgoing students’ countries | % | Share of incoming students’ countries | % |
| Germany | 20 | Germany | 24 |
| Poland | 12 | Poland | 14 |
| Italy | 9 | Netherlands | 10 |
| Spain | 7 | France | 9 |
| Netherlands | 7 | Italy | 5 |
| France | 6 | Lithuania | 5 |