| a | | Projected estimate (medium fertility variant). |
| b | | 2022 |
| c | | Refers to the localities of Calithèa, Peristérion and Piraeus, among others. |
| d | | 2019 |
| e | | 2023 |
| f | | Excludes irrigation canals and landscaping care. |
| g | | Data classified according to ISIC Rev. 4. |
| h | | Excludes publishing activities. Includes irrigation canals. |
| i | | Includes publishing activities and landscape care. Excludes repair of personal and household goods. |
| j | | Estimate. |
| k | | Calculated by the UN Statistics Division from national indices. |
| l | | Data refers to a 5-year period preceding the reference year. |
| m | | Calculated by the UN Statistics Division. |
| n | | 2021 |
| o | | Data are as at 1 January of reporting year. |
| p | | Population aged 16 to 74 years. |
| q | | Users in the last 3 months. |
| r | | Information is based on the border survey conducted by the Bank of Greece. |
| s | | Development Assistance Committee member (OECD). |