A line chart from the Institute for Government showing child and family social worker agency rate, by local authority, 2013–24, where the England average generally rose from 12.4% to a peak of 17.9% in 2023, before dropping to 16.2% in 2024. There is wide variation between local authorities as the 90th percentile has remained close to 30% and the 10th percentile just below 5%.