In this world map, you can check at a single glance which countries have more people with the surname Ootsuki. As you can see, it's effortless to notice which countries have a higher number of people carrying the Ootsuki surname.
Thanks to this world map that shows the density of people with the surname Ootsuki in different countries, you can get an idea not only of the popularity of the surname Ootsuki in each country but also of the different migrations of people surnamed Ootsuki.