What Percentage Of The World Is Bilingual 2020?

What Percentage Of The World Is Bilingual 2020? Monolingual: A person knowing only one language (40% of world population) Bilingual: A person using or able to use two languages especially with equal fluency (43% of world population) Trilingual: A person speaking three languages fluently (13% of world population) What percentage of the world is bilingual?