| Both states are culturally diverse with dispersed populations, high internal migration, and emigration to the United States. |
| In addition to international migration, internal migration is also relevant when population estimates at sub-national level are produced. |
| It was unclear whether this was due to international or internal migration. |
| From the joint use of the two questions it is possible to analyse patterns and timing of internal migration. |
| And yet internal migration is seldom studied or considered at the international programme and policy level. |
| Over the last century, internal migration has overwhelmingly been from mountains to plains, inland to coastal areas, and rural to urban settlements. |
