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The 15,110 Estonians studied by Aul were all males. Today we know for a fact that females are much more likely to be red-haired than males. Therefore to get a better average you got to have both genders. It’s also more realistic. Only 1% may have pure red hair, but reddish (including auburn, russet, chestnut) will reach almost 3% with no issues. For blonde hair, Estonians are comparable to Scandinavians especially females much more so than males. It’s a very blonde country.
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