| Place of birth | Percent before 1961 | Percent between 1988-1991 |
| United Kingdom | 26.5 | 3.8 |
| Southern Europe | 20.7 | 5.0 |
| Western Europe | 21.4 | 2.4 |
| Eastern Europe | 17.7 | 10.7 |
| Eastern Asia | 1.8 | 20.0 |
| South East Asia | 0.2 | 13.2 |
| United States | 5.0 | 3.1 |
| Caribbean and Bermuda | 0.7 | 5.4 |
| Southern Asia | 0.4 | 8.8 |
| Africa | 0.5 | 6.9 |
| South America | 0.4 | 4.6 |
| Western Asia and Middle East | 0.4 | 10.0 |
| Other Northen Europe | 3.8 | 0.7 |
| Central America | 0.2 | 4.5 |
| Oceania and other countries | 0.5 | 0.8 |