Language Bank expect
Discussing predictions
By 2050, one in six people on the planet will be aged 65 or over.
The number of people globally aged 65 and over is expected/likely to more than double by 2050.
Experts have predicted/forecast that the over-65s will make up 17 per cent of the global population by 2050.
World population is set to reach 9.8 billion by 2050.
Net migration into Britain over the last decade was higher than expected.
Overall population growth in Britain has been in line with predictions.
LANGUAGE BANK AT fall, illustrate, increase, proportion