Nearly 15 million more people died during the pandemic than would have in normal times, the World Health Organization said Thursday, a staggering measure of COVID-19’s true toll that laid bare how vastly country after country has undercounted victims.

In Mexico, the excess death toll during the first two years of the pandemic was twice as high as the government’s official tally of COVID-19 deaths, the WHO found.

In Egypt, excess deaths were roughly 12 times as great as the official COVID-19 toll.