"The data doesn't say that X per cent of the country's workforce is taking time off but that X per cent of all vacation days are taken in that week. Germans fore example holiday evenly throughout the year while Italians take August off."
Source: https://www.reddit.com/r/dataisbeautiful/comments/1hkmlkz/oc_when_does_europe_go_on_vacation/
Source: https://www.reddit.com/r/dataisbeautiful/comments/1hkmlkz/oc_when_does_europe_go_on_vacation/