| a | | Projected est. (medium fertility variant). |
| b | | For statistical purposes, the data for United Kingdom do not include this area. |
| c | | 2023 |
| d | | 2018 |
| e | | 2024 |
| f | | Exc. irrigation canals and landscaping care. |
| g | | Data classified according to ISIC Rev. 4. |
| h | | Exc. publishing activities. Inc. irrigation canals. |
| i | | Inc. publishing activities and landscape care. Exc. repair of personal and household goods. |
| j | | Break in the time series. |
| k | | 2013 |
| l | | Calculated by the UN Statistics Division from national indices. |
| m | | Estimate. |
| n | | 2019 |
| o | | Data refers to a 5-year period preceding the reference year. |
| p | | Calculated by the UN Statistics Division. |
| q | | For statistical purposes, the foreign-born population includes persons born in United Kingdom, Anguilla, Bermuda, British Virgin Islands, Channel Islands, Falkland Islands (Malvinas), Gibraltar, Isle of Man, Montserrat, Saint Helena, and Turks and Caicos Islands. |
| r | | Refers to foreign citizens. |
| s | | Including refugees. |
| t | | 2014 |
| u | | 2017 |
| v | | 2022 |
| w | | Arrivals by air. |