Accounting for 4.24% of the global population, Americans collectively possess 29.4% of the world's total wealth, the largest percentage of any country. The U.S. also ranks first in the number of billionaires and millionaires in the world, with 724 billionaires and 10.5 million millionaires as of 2020. Prior to the 2019–2021 global SARS-CoV-2 pandemic, Credit Suisse listed some 18.6 million U.S. citizens as having a net worth in excess of $1 million. In 2020, the Food Security Index ranked the United States 11th in food security, giving the country a score of 77.5/100. Americans on average have more than twice as much living space per dwelling and per person as EU residents. For 2019, the United Nations Development Programme ranked the United States 17th among 189 countries in its Human Development Index (HDI) and 28th among 151 countries in its inequality-adjusted HDI (IHDI).