| Let us recall that the HDI is an index made of criteria relating to health, level of education and longevity. |
| Unlike the old HDI, the new HDI based on the geometric mean takes into account differences in achievement across dimensions. |
| The average HDI of regions of the World and groups of countries are also included for comparison. |
| Returning to the previous graph, which you should have in front of you, you can see the HDI index has been in modest decline, but there has been recent improvement within the last year or so. |
| The UNDP puts countries into three categories based on their HDI number: low, medium, and high human development. |
| The geometric mean has only a moderate impact on HDI rankings. |
