Interesting, I'd swar it's Italy, it's literally the first thing most of my friends do in the morning. The only difference is that some take their espresso at home whereas others prefer their favorite local bar.
Italy isn't even particularly high on the list, and for example this site has them as number 15. The average Finnish person is drinking twice the amount of coffee per day as the average Italian person.
https://cafely.com/blogs/research/which-country-consumes-the...