Within the next 25 years, more than a quarter of the population is expected to be over 60.

A century ago, Europe had nearly a quarter of the world's population.

It would bring together a quarter of the world's population.

Almost a quarter of the population lives in the capital city.

For the school year 2005-2006, there were 5,283,855 students in both public and private schools, about a quarter of the entire population.

Some 8.5 million live in California - a quarter of the population.

Some 25.94% or a quarter of the population was foreign born.

About three quarters of the state's population lives near this river system.

In 2000 about three quarters of the working population worked outside the village.

Within the next 25 years, according to some projections, they could form a quarter of the country's population.