I’m afraid it’s in spanish:

https://www.20minutos.es/noticia/3143139/0/mapas-mundo-personas-pelo-rubio-ojos-claros/

Basically, percentage of blonds is only high on a few countries.

Not that it’s really important. I guess that when people imagine others, tends to either imagine an idealized person or someone “average”. I default to “average”. XD