Source: Institute for Government analysis of NHS England, ‘Ambulance quality indicators’ ('Response times' table), January 2023, supported by CIPFA. Notes: 90th percentile indicates that 90% of response times were faster than this, and 10% were slower. Category 2 responses are for serious conditions, such as a stroke or chest pain which may require urgent transport. Data was not available before 2017. Get the data Embed