Japan has the world's lowest ratio of people of working age to those aged 65 or over, according to a U.N. report released Monday.

While the ratio, a measure of the burden placed on the working population by the nonworking elderly, is falling worldwide, Japan stands out with just 1.8 people aged 25 to 64 for each person aged 65 or over, according to the report, called "World Population Prospects 2019: Highlights."

"Japan in 2019 has the lowest potential support ratio of all countries or areas with at least 90,000 inhabitants," said the report from the United Nations' Department of Economic and Social Affairs.