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most-spoken language: English 18.8%, Mandarin Chinese 13.8%, Hindi 7.5%, Spanish 6.9%, French 3.4%, Arabic 3.4%, Bengali 3.4%, Russian 3.2%, Portuguese 3.2%, Urdu 2.9% (2022 est.)
most-spoken first language: Mandarin Chinese 12.3%, Spanish 6%, English 5.1%, Arabic 5.1%, Hindi 3.5%, Bengali 3.3%, Portuguese 3%, Russian 2.1%, Japanese 1.7%, Punjabi, Western 1.3%, Javanese 1.1% (2018 est.)
note 1: the six UN languages - Arabic, Chinese (Mandarin), English, French, Russian, and Spanish (Castilian) - are the mother tongue or second language of about 49.6% of the world's population (2022), and are the official languages in more than half the states in the world; some 400 languages have more than a million first-language speakers (2018)
note 2: all told, there are estimated to be 7,168 living languages spoken in the world (2023); approximately 80% of these languages are spoken by less than 100,000 people; about 150 languages are spoken by fewer than 10 people; communities that are isolated from each other in mountainous regions often develop multiple languages; Papua New Guinea, for example, boasts about 840 separate languages (2018)
note 3: approximately 2,300 languages are spoken in Asia, 2,140, in Africa, 1,310 in the Pacific, 1,060 in the Americas, and 290 in Europe (2020)
.Space Facts
Currenctly, in terms of Space agencies, more than 70 countries have national space agencies (2024), and more than 30 countries have existing or planned commercial or government space launch sites (2024)
Refugees and internally displaced persons
The UN High Commissioner for Refugees (UNHCR) estimated that as of mid-year 2023 there were 110 million people forcibly displaced worldwide; this includes 62.5 million IDPs, 36.4 million refugees, 6.1 million asylum seekers, 5.3 million others in need of international protection; the UNHCR estimates there are currently more than 4.4 million stateless persons as of year-end 2022 (the true number is estimated to be significantly higher)
Nuclear energy
The World's estimated mumber of operational nuclear reactors are 416 (2025) and the Number of nuclear reactors under construction are 62 (2025). As for the Net capacity of operational nuclear reactors, we have 376.59GW (2025)
Economic Facts
Dominated by the onrush of technology, especially in computers, robotics, telecommunications, and medicines and medical equipment; most of these advances take place in OECD nations; only a small portion of non-OECD countries have succeeded in rapidly adjusting to these technological forces; the accelerated development of new technologies is complicating already grim environmental problems
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