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England > North East Region > Durham LA
Average Size of One Teacher Classes, Maintained Schools 
| Primary | Secondary | |||||
| 1997 | 2007 | Difference | 1997 | 2007 | Difference | |
| Bishop Auckland Constituency | 28 | 24.9 | -3.1 | 22.1 | 20.3 | -1.8 |
| City of Durham Constituency | 27.4 | 25.5 | -1.9 | 21.4 | 20.1 | -1.3 |
| Easington Constituency | 29.2 | 26.3 | -2.9 | 23.3 | 20.9 | -2.4 |
| North Durham Constituency | 29 | 25.8 | -3.2 | 22.6 | 21.9 | -0.7 |
| North West Durham Constituency | 27.5 | 24.1 | -3.4 | 23.3 | 20.9 | -2.4 |
| Sedgefield Constituency | 28.2 | 25.5 | -2.7 | 22.2 | 21.1 | -1.1 |
| Durham LA | 28.5 | 25.3 | -3.2 | 22.5 | 20.8 | -1.7 |
| North East Region | 27.2 | 25 | -2.2 | 22 | 20.9 | -1.1 |
| England | 27.5 | 26.2 | -1.3 | 21.7 | 21.2 | -0.5 |
The average size of classes taught by one teacher in Maintained Primary Schools in 2007 was 26.2 down from 27.5 in 1997.
In Maintained Secondary Schools the average size of classes taught by one teacher in 2007 21.2 down from 21.7 in 1997.