| a |      | Projected estimate (medium fertility variant). | 
| b |      | 2019 | 
| c |      | 2022 | 
| d |      | Data compiled in accordance with the System of National Accounts 1968 (1968 SNA). | 
| e |      | Estimate. | 
| f |      | Data up to 2011 refer to former Sudan (including South Sudan) and data beginning 2012 is attributed to Sudan without South Sudan. | 
| g |      | 2023 | 
| h |      | Data refers to a 5-year period preceding the reference year. | 
| i |      | Calculated by the UN Statistics Division. | 
| j |      | Including refugees. | 
| k |      | Data based on calendar year (January 1 to December 31). | 
| l |      | Estimates should be viewed with caution as these are derived from scarce data. | 
| m |      | Data are based on SHA2011. | 
| n |      | 2021 | 
| o |      | 2017 | 
| p |      | 2018 | 
| q |      | Including nationals residing abroad. |