| a |      | Including Christmas Island, Cocos (Keeling) Islands and Norfolk Island. | 
| b |      | Projected estimate (medium fertility variant). | 
| c |      | Including Norfolk Island. | 
| d |      | 2022 | 
| e |      | Refers to Significant Urban Areas as of 2001. | 
| f |      | 2019 | 
| g |      | 2023 | 
| h |      | Data classified according to ISIC Rev. 4. | 
| i |      | Excludes irrigation canals and landscaping care. | 
| j |      | Excludes publishing activities. Includes irrigation canals. | 
| k |      | Includes publishing activities and landscape care. Excludes repair of personal and household goods. | 
| l |      | Estimate. | 
| m |      | Weighted average of index values computed for the 8 capital cities. | 
| n |      | Calculated by the UN Statistics Division from national indices. | 
| o |      | Areas not elsewhere specified. | 
| p |      | Data refers to a 5-year period preceding the reference year. | 
| q |      | Calculated by the UN Statistics Division. | 
| r |      | 2021 | 
| s |      | Data are as at 1 January of reporting year. | 
| t |      | Population aged 15 years and over. Accessed the internet for personal use in a typical week. | 
| u |      | Excluding overseas territories. | 
| v |      | Data refer to fiscal years ending 30 June. | 
| w |      | Excluding nationals residing abroad and crew members. | 
| x |      | Development Assistance Committee member (OECD). |