Spreadsheet from Greendown Community School, Swindon This spreadsheet has been produced by Mark Carter, Head of Science at Greendown Community School, Swindon.
How have GCSE grade attainment rates changed since the exams were introduced in 1988?
The first English Baccalaureate - or EBacc - courses will start in September 2015 and will remove the opportunity to retake modules, cut down on coursework and reintroduce the tough end-of-year exams that were phased out during the GCSE era.
The pass rate, or proportion of entries awarded a C or above, for Biology rose from 60.5% to 93.1% between 19.
The pass rate for science double award - where pupils studied aspects of Biology, Chemistry and Physics and received two GCSEs - almost doubled between 1993 (46.1%) and 2010 (87.2%) when it was discontinued.