
Extract the answer to the question from the following context.
Question: What information is necessary to determine the difference in the people who speak Somali in different areas?
Context: The exact number of speakers of Somali is unknown. One source estimates that there are 7.78 million speakers of Somali in Somalia itself and 12.65 million speakers globally. The Somali language is spoken by ethnic Somalis in Greater Somalia and the Somali diaspora.

7.78 million speakers of Somali in Somalia itself and 12.65 million speakers globally
