per capita

Older households still spend less per capita than younger cohorts on many categories.

"Obviously there was an incentive to see as many people as possible because of the per capita payment," says Prof Ian Fentiman, emeritus professor of surgical oncology at King's College London.

The army has halved in size since 1990, and it now has one of the smallest reserve forces per capita in Europe.

Income per capita in New Mexico is among the lowest in the nation, according to Commerce Department data.

Its per capita income tripled in the last decade and the World Bank estimates that more than 25 million people have been lifted out of poverty in the last 20 years.