In Russia, from 55 and older there are more women then men and every age below that it seems pretty even. From ages 20 to 50 there are a lot of people but below 20 years old, the amount of people is considerably low. In 20 years the girls still dominate. This time at almost all ages. the amount of people below 20 years of age is still low compared to other ages. The TFR for 2009 is 1.4.
Nigeria is a developing country, and as you can see the population pyramid is very different. The TFR for 2009 is 4.9.
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