Interactive pyramids are an instrument which shows the evolution of the resident population in the Basque Country.
These pyramids use various statistical sources: firstly, the population recounts of the Municipal Population Update, later replaced by the Municipal Statistics on Inhabitants, the main source of which is the Municipal Register of Inhabitants; and secondly, the Demographic Projections, which are estimates of the future population of the Basque Country.
| Age | Units | % | Sex ratio | ||
|---|---|---|---|---|---|
| Tot | Fem | Mal | |||
| ≥ 65 | |||||
| 20-64 | |||||
| ≤19 | |||||
| Total | |||||