The DfE published KS4 national data for state maintained secondary schools is available here: https://www.gov.uk/government/statistics/key-stage-4-performance-2025 and https://explore-education-statistics.service.gov.uk/data-catalogue/data-set/8dee73ce-098a-42bd-bcac-31a48514b9f7 for subjects. Also, I would be happy to send through national data from our DfE Analyse School Performance reports after obscuring our school data.