Two of the laureates are Swiss. This brings the total number of Swiss laureates to 28, making it the third country with most Nobel prizes per capita. The first two are Saint Lucia and Luxemburg, which have 180k and 600k inhabitants respectively. Among the bigger countries, Switzerland has the most per capita Nobel prizes. Interestingly, UK is on number 9 on that list and has a significantly bigger population than the…
It would probably be more fair to attribute the Nobel prize "nationality" to the university/country at which the scientist was working at the time they made their discovery.
No attribution is perfect, but they might still be useful.