| 1 - | Percentages may not sum to 100% due to movements to areas not classified by human development categories. |
| 2 - | Data refer to Serbia and Montenegro prior to its separation into two independent states in June 2006. |
| .. | Data not available |
| (.) | Greater (or less) than zero but small enough to be rounded off to zero at the displayed number of decimal points |
| < | Less than |
| - | Not applicable |
| T | Total |