10 Best Countries in the World

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3. United Kingdom

Human Development Index (2021): 0.929

R&D Expenditure as a Percentage of GDP (2021): 2.91%

GDP PPP (2024): $3.9 trillion

International Migrant Stock (2020): 9.3 million

Insider Monkey Score: 8.6

The UK has a GDP of $3.9 trillion as of 2024. In 2021, the HDI of the country was 0.929. In 2020, the UK had 9.3 million foreign-born people. Its R&D expenditure was 2.91% of its GDP in 2021.

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