How much percentage of population belongs to indo-european​

46 percent of the world's population (3.2 billion) speaks an Indo-European language as a first language

Explanation:

In total, 46 percent of the world's population (3.2 billion) speaks an Indo-European language as a first language, by far the highest of any language family.

Explanation:

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swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.