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About a third 33%
It is estimated that around 20% of the world's men are circumcised. The vast majority of these men are circumcised Muslims, but the number also includes circumcise…d men in other areas of the world circumcised for medical reasons or cultural reasons (such as in the United States). Local circumcision rates also depend on location and age group. For example in the United States about 85% of males born between 1950 and 1980 are circumcised while only about 45% of males born between 1995 and 2005 are circumcised.
56% of all humans live in Asia.
For the last hundred years, 33%
since the world population is increasing by the second the china's population in percentage is approx 19.52%
About 11% of the world's population is in Europe.
A 2002 survey by Adherents.com, which estimates the proportion of the world's people who are "secular, non-religious, agnostics and atheists" at about 14% . The accuracy o…f the number is difficult to prove as many societies make non-religion essentially a criminal matter (in Christian/Muslim countries). in some, like China, the state is officially non-religious which would make almost 20% of the population of the Earth non-religious if only China weere counted.
Very low, as it was an expensive business: perhaps 1%.