是来自一本书的统计,统计的是原住民 aboriginal IQ,而不是居民平均水平。
World map of average IQ per country based on data in the Richard Lynn book Race Differences in Intelligence (2006). This map represents average aboriginal IQ, not average IQ of a nation's current inhabitants (i.e. South African IQ excludes all white, asian, and hispanic peoples; and USA IQ includes only native americans).