| 1Total population registered per January 1 2018. |
| 2Each alternative is described by four letters in the following order: fertility, life expectancy, internal migration and immigration. M = medium, L = low and H = high. As projected numbers are inherently uncertain, they have been rounded. |
| 3The life expectancy estimates are somewhat lower in the projections than in the genereal population statistics, as the projections estimate life expectancy based on age at the end of the year and not at time of death. Furthermore, the formula used to estimate death rates is also slightly different, as we employ an exponential model in the projections. |
| 4The numbers for immigration and emigration in the projections do not include multiple moves to and from Norway during the same year for an individual. The numbers are thus lower than the immigration and emigration numbers in the general population statistics. The numbers for net migration are, however, comparable. |
