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

The graphs display the amount of change in annual expenditure by a particular school in England in three separate years, 1981, 1991 and 2001.

Overall

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, the largest proportion of total school expenditures was allocated to teacher

salaries

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in 1991, meanwhile, that of insurance expenses was the lowest in 1981.Between 1981 and 2001, there was a significant decrease in costs related to resources like books and other workers'

salaries

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. In all three years, the greatest expenditure was allocated to the

salaries

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of instructors and it reached its peak, which was 50%, in 1991. But

while

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, in 1981, 28% of total school expenses were paid for

salaries

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of other workers, over the following 20 years, that of workers

salaries

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fell dramatically (15%). Despite the fact that the cost of resources

such

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as books had risen to 20% by 1991, it was merely 9%

at the end

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of the period. In 1991, furniture and equipment expenditures went down only a very small number of total expenditures and more than quadrupled in 2001.

Similarly

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, the cost of insurance saw a rising trend, growing only 2% to 8% by 2001.