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St Mary’s is proud of the results it achieves. Pupils are continually encouraged to reach their full potential and the results reflect their dedication and commitment.
The 2006-2007 cohort had 112 students, who all passed at least one A level subject.
There were some outstanding individual results, with several students gaining at least 3 passes at grade A.
One student in Fine Art received a special commendation from the exam board for being in the top 5 students in the country.
| A levels | 2004 | 2005 | 2006 | 2007 | 2008 |
| Percentage of Grade A's | 11.9%. | 9.3% | 17.8% | ||
| Percentage of Grade A - C | - | 51.3% | 50.6%. | 55.4% | 54% |
| Percentage of Grade A - E | 90.5% | 89.5% | 88.7%. | 93.1% | 91% |
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