A line graph shows output per hour worked in both the United Kingdom and the United States from 2000 to 2024. The figures are indexed to 100 at the start of the period and generally rise from there, though they decline notably in the U.K. around 2009, amid the global financial crisis, and again in 2020, amid the COVID-19 pandemic. In the U.S., growth in output per hour worked flattened amid the financial crisis and suffered its biggest decline around 2023. At the end of the period, there was a 25% gap between the two countries’ cumulative productivity gains. The U.S. index surpassed 150, while the U.K. index measured about 120.