| a |      | Projected estimate (medium fertility variant). | 
| b |      | 2022 | 
| c |      | Refers to the Governorate of Grand Algiers. | 
| d |      | 2019 | 
| e |      | 2023 | 
| f |      | Estimate. | 
| g |      | Algiers | 
| h |      | Calculated by the UN Statistics Division from national indices. | 
| i |      | Data refers to a 5-year period preceding the reference year. | 
| j |      | Calculated by the UN Statistics Division. | 
| k |      | Including refugees. | 
| l |      | Data based on calendar year (January 1 to December 31). | 
| m |      | Estimates should be viewed with caution as these are derived from scarce data. | 
| n |      | 2021 | 
| o |      | 2011 | 
| p |      | Data are as at 1 January of reporting year. | 
| q |      | Population aged 15 years and over. | 
| r |      | Break in the time series. | 
| s |      | 2017 | 
| t |      | Including nationals residing abroad. |