This haplogroup appears in 80-90% of most populations in East Asia and Southeast Asia, and it is almost exclusive to that region: M175 is almost nonexistent in Western Siberia, Western Asia, Europe, most of Africa, and the Americas, where its presence may be the result of recent migrations. However, certain subclades of Haplogroup O-M175 do achieve significant frequencies among some populations of Central Asia, South Asia, and Oceania. For example, one study found it at a rate of 65.81% among the Naimans, a tribe in Kazakhstan, even though the rate among Kazakhs in general is believed to be only about 9% . It has been estimated that 25% of the entire male population of the world carries O-M175.