The three pie charts below show the changes in annual spending by a particular UK school in 1981, 1991 and 2001.

The charts illustrate how much a UK school spent on different running costs over a 20-year period.

Overall

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, teachers’

salaries

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constituted the largest

cost

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to the school, and

while

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spending increased dramatically for equipment and insurance, there were corresponding drops in

expenditure

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on things

such

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as books and on other workers’

salaries

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. In all three years, the greatest

expenditure

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was on staff

salaries

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. But

while

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other workers’

salaries

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saw a fall from 28% in 1981 to only 15% of spending in 2001, teachers’ pay remained the biggest

cost

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, reaching 50% of total spending in 1991 and ending at 45% in 2001.

Expenditure

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on resources

such

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as books had increased to 20% by 1991 before decreasing to only 9% by the end of the period.

In contrast

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, the

cost

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of furniture and equipment saw an opposite trend.

This

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cost

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decreased to only 5% of total

expenditure

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in 1991 but rose dramatically in 2001 when it represented 23% of the school budget.

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Similarly

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Similarly,

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the

cost

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of insurance experienced a rising trend, growing from only 2% to 8% by 2001 (or: there was a rise in the

cost

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of insurance).