One in 10 foreigners who visited Russia visa-free for the FIFA World Cup last summer took advantage of a visa waiver to return to the country by the end of 2018, Russia’s top lender Sberbank has said.

Security services estimate that more than 633,000 Fan ID holders visited Russia during the 2018 World Cup, according to the Vedomosti newspaper. Russia extended the Fan ID program until Dec. 31, 2018, allowing fans to re-enter the country after the football championship ended in July.