How have GCSE pass rates changed over the exams' 25 year history?

Nick Clegg and Michael Gove today confirmed that GCSEs are to be replaced by an English Baccalaureate. How have GCSE grade attainment rates changed since the exams were introduced in 1988?
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The proportion of GCSE entries awarded an A or A* increased every year between 1988 and 2011 Click for larger image. Illustration: Paul Scruton for the Guardian

Nick Clegg and Michael Gove this morning announced details of the English Baccalaureate, the qualification that will replace GCSEs as the exam sat by 16-year-olds in England.

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.

In their story here, Hélène Mulholland and Nicholas Watt write:

The changes will lead to an overhaul of the module system as course work is replaced by exams. Fewer students will achieve the higher grades as the government seeks to raise academic standards. It is expected that around 10% of pupils will be awarded a grade 1. Under the current system around a third of pupils are awarded A or A* grades. There will also be only one exam board. Ministers believe exam boards have in recent years competed for business by making it easier for pupils to obtain higher grades

Since their introduction GCSEs have been criticised over perceived grade inflation. The proportion of entries awarded grades A* to C rose every year from 1988 to 2011, falling for the first time - from 69.8% to 69.4% - in 2012.

The percentage achieving grade A* or A also climbed every year until 2012. 2.8% of GCSE entries were awarded the A* grade when it was introduced in 1993, but 7.8% - or almost one in twelve - were given the top grade in 2011.

Of all core subjects, the sciences have seen some of the largest improvements in grade attainment. The pass rate, or proportion of entries awarded a C or above, for Biology rose from 60.5% to 93.1% between 1993 and 2011.

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.

The cause of such improvements in achievement has always been debated, and research published earlier this year by Ofqual found that exams had become easier in the last ten years.

The number of GCSE entries has fluctuated since 1988, but shows little sign of a clear trend. The total across all subjects declined steadily from 2007 to 2011, but picked up in 2012, rising by 73,000.

Follow the link below to explore and download full historical subject-by-subject grade attainment rates.

Data summary

Proportions of all GCSE entries awarded each grade

Click headings to sort table. Download the data

Year
A*
A
B
C
D
E
F
G
U
A*-C
Entries
2012 7.3 15.1 21.7 25.3 15.9 7.7 4.1 1.9 1 69.4 5225288
2011 7.8 15.4 21.7 24.9 15.1 7.8 4.1 2 1.2 69.8 5151970
2010 7.5 15.1 20.6 25.9 15.9 7.8 4 1.9 1.3 69.1 5374490
2009 7.1 14.5 19.9 25.6 16.5 8.5 4.4 2.1 1.4 67.1 5469260
2008 6.8 13.9 19.8 25.2 16.6 9.1 4.7 2.3 1.6 65.7 5669077
2007 6.4 13.1 18.6 25.2 17.2 9.8 5.3 2.4 2 63.3 5827319
2006 6.3 12.8 18.3 25 17.3 10.2 5.6 2.6 1.9 62.4 5752152
2005 5.9 12.5 18 24.8 17.3 10.5 6 2.8 2.2 61.2 5736505
2004 5.6 11.8 17.3 24.5 17.3 11.3 6.6 3.2 2.4 59.2 5875373
2003 5.1 11.6 17.3 24.1 17.7 11.7 6.8 3.3 2.4 58.1 5733487
2002 5 11.4 17.4 24.1 18.1 12 6.7 3.2 2.1 57.9 5662382
2001 4.9 11.2 16.9 24.1 18.3 12.1 7.1 3.3 2.1 57.1 5632936
2000 4.6 11.2 17 23.8 18.4 12.5 7.2 3.2 2.1 56.6 5481920
1999 4.4 10.8 16.9 23.7 18.7 12.7 7.5 3.3 2 55.8 5374751
1998 4.1 10.6 16.5 23.6 18.6 13.2 7.6 3.5 2.3 54.8 5353095
1997 3.6 10.5 18.1 22.3 18.7 13.3 8.5 3.6 1.5 54.4 5415176
1996 3.4 10.3 18 22.3 18.6 13.4 8.7 3.8 1.5 54 5475872
1995 3.2 9.9 17.8 22.1 18.6 14 9 3.9 1.5 53 5431625
1994 2.8 10.2 18 21.8 18.7 13.7 9.3 4.1 1.5 52.8 5029599
1993   12.5 15.9 23.1 18.6 14.2 9.3 4.4 1.8 51.5 4968634
1992   12.3 15.3 22.9 18.6 14.7 9.9 4.7 1.6 50.5 5028554
1991   11.4 14.7 22.4 18.6 15 10.5 5.3 2.2 48.5 4947593
1990   10.8 14.4 22.5 18.7 15.3 10.6 5.2 2.5 47.7 5016547
1989   9.9 13.8 21.9 19 15.8 11.2 5.6 2.9 45.6 5132998
1988   8.4 12.8 20.7 19.3 16.6 12.5 6.3 3.4 41.9 5230047

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GCSE Astar A

The proportion of GCSE entries awarded an A or A* increased every year between 1988 and 2011 Illustration: Paul Scruton for the Guardian