Between 2024 and 2100, according to the projected central scenario:

• Portugal’s population will decline, from the current 10.7 million to 8.3 million people.

• The number of young people will decrease from 1.4 to around 1.0 million.

• The number of elderly people will increase from 2.6 to 3.1 million.

• The ageing index in Portugal will increase gradually until 2060, when it will tend to stabilise.

• The working-age population (aged 15 to 64) will decrease from 6.8 to 4.2 million people.

• The old-age dependency ratio (the ratio of persons aged 65 or over to those aged 15 to 64) is expected to rise sharply due to both a shrinking working-age population and a growing elderly population. This ratio is projected to increase from 39 to 73 elderly persons per 100 working-age persons between 2024 and 2100.

• The young-age dependency ratio (the ratio of persons aged 0 to 14 to those aged 15 to 64) is expected to remain relatively stable, increasing slightly from 20 to 23 young people per 100 working-age persons between 2024 and 2100.