By Region of Nationality
| Region of Nationality | 2017 | 2018 | 2019 |
|---|---|---|---|
| Total | 53,691 | 22,405 | 29,916 |
| Africa | 20,248 | 10,463 | 16,370 |
| Asia | 26,648 | 7,522 | 7,856 |
| Europe | 5,026 | 3,460 | 4,851 |
| North America | 1,455 | 827 | 511 |
| Oceania | - | 5 | - |
| South America | 233 | 128 | 298 |
| Unknown | 81 | - | 30 |
By Country of Nationality
| Country of Nationality | 2017 | 2018 | 2019 |
|---|---|---|---|
| Total | 53,691 | 22,405 | 29,916 |
| Afghanistan | 1,311 | 805 | 1,198 |
| Armenia | 57 | 58 | 33 |
| Azerbaijan | 20 | D | - |
| Belarus | 73 | 181 | 96 |
| Bhutan | 3,550 | 2,228 | 32 |
| Burma | 5,078 | 3,555 | 4,932 |
| Burundi | 291 | 201 | 196 |
| Cambodia | 3 | - | D |
| Cameroon | 21 | 15 | 28 |
| Central African Republic | 275 | 148 | 244 |
| Chad | 7 | D | 8 |
| China, People's Republic | 26 | 6 | D |
| Colombia | 233 | 128 | 298 |
| Congo, Democratic Republic | 9,377 | 7,878 | 12,958 |
| Congo, Republic | 5 | 5 | 3 |
| Cote d'Ivoire | 51 | 14 | 62 |
| Cuba | 177 | - | D |
| Egypt | 9 | D | 4 |
| El Salvador | 1,124 | 725 | 311 |
| Eritrea | 1,917 | 1,269 | 1,757 |
| Ethiopia | 766 | 376 | 247 |
| Gambia | 5 | - | D |
| Georgia | - | D | 26 |
| Guatemala | 50 | 42 | 118 |
| Guinea | 5 | 10 | 10 |
| Haiti | - | - | - |
| Honduras | 104 | 59 | 74 |
| Iran | 2,577 | 41 | 199 |
| Iraq | 6,886 | 140 | 465 |
| Jordan | 5 | D | 5 |
| Kazakhstan | 39 | 47 | 8 |
| Kenya | 6 | 3 | 17 |
| Korea, North | 12 | 5 | D |
| Kuwait | 6 | D | D |
| Kyrgyzstan | 25 | 12 | 46 |
| Laos | - | - | - |
| Liberia | 8 | 6 | 37 |
| Mauritania | - | - | - |
| Moldova | 301 | 207 | 120 |
| Nepal | 39 | 12 | 13 |
| Pakistan | 346 | 441 | 264 |
| Russia | 377 | 437 | 184 |
| Rwanda | 104 | 110 | 91 |
| Senegal | 22 | 14 | 14 |
| Sierra Leone | 5 | - | D |
| Somalia | 6,130 | 257 | 231 |
| South Sudan | 176 | 13 | 42 |
| Sri Lanka | 12 | 56 | 17 |
| Sudan | 980 | 76 | 382 |
| Syria | 6,557 | 62 | 563 |
| Tajikistan | - | - | - |
| Togo | D | - | D |
| Turkmenistan | - | 5 | 18 |
| Uganda | 58 | 42 | 24 |
| Ukraine | 4,264 | 2,635 | 4,451 |
| Uzbekistan | 35 | 27 | 12 |
| Vietnam | 21 | 10 | 10 |
| Yemen | 21 | D | 3 |
| Zimbabwe | D | 13 | D |
| All other countries [1] | 60 | 22 | 23 |
| Unknown [2] | 81 | - | 30 |
