4. Religiously unaffiliated population change
The religiously unaffiliated population is the world’s third-largest religious category and grew the second-fastest between 2010 and 2020.
Numbers, Facts and Trends Shaping Your World
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1. Views of the United States
Across 24 nations, a 49% median view the U.S. favorably, while an identical share do not. People are also roughly split on whether U.S. democracy works well.
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How the United Nations is funded, and who pays the most
The amount each UN member must pay varies. In 2025, the U.S. was responsible for 22% of the UN’s regular budget and 26.2% of its peacekeeping budget.
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6. Buddhist population change
Buddhism is the only major religion that declined in number globally between 2010 and 2020, mostly due to religious disaffiliation in East Asia and to low birth rates.
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Majorities of Americans Support Several – But Not All – Types of Foreign Aid
Most Americans say the U.S. should give humanitarian aid to other countries, and majorities endorse aid supporting economic development and democracy.
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3. Confidence in Trump to handle global issues
On balance, most people across 24 nations are not confident in Trump to handle immigration, conflict in Ukraine and Israel, China relations, the global economy, and climate change.
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Do Americans think Trump can make good decisions about various foreign policy issues?
Public confidence in Trump’s handling of the Russia-Ukraine war, as well as his policymaking toward Iran, China and North Korea, has declined since last year.
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How the Global Religious Landscape Changed From 2010 to 2020
Christians remain the largest religious group, and Muslims grew the fastest from 2010 to 2020. Read how the global share of Buddhists, Hindus, Jews and the religiously unaffiliated changed.
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2. Christian population change
Christians remain the largest religious group. But they’re shrinking as a share of the global population, as many Christians are leaving religion altogether.
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U.S. Image Declines in Many Nations Amid Low Confidence in Trump
More than half of adults in 19 of 24 countries surveyed lack confidence in Trump’s leadership on the world stage.
