the three pie charts below show the changes in annual spending by a particular UK school on 1982,1991 and 2001.

The pie charts illustrate how the yearly cost changed in a certain school in the

Unite

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United

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Kingdom

among

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in

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1981, 1991 and 2001.

Overall

, the proportion of teachers’ salaries still remained the highest to school spending and

the

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apply

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insurance kept the least part of all.

While

the expenditure

in

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on

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equipment and insurance increased significantly, a decrease can be seen in the percentage of other workers’

wage

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wages

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and resources

as

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such as

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books. The largest proportion, teachers’ salaries,

had

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apply

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rose slightly from 40%

in1981

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in 1981

to 45% in 2001 with some fluctuation in 1991.

Similarly

, there was a drop

of

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in

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furniture and equipment from 15% in 1981 to 5% in 1991 before growth to 23% in 2001. There was

a

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an

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upward trend

could

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which could

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be found that the expenditure on insurance grew to 8%

at the end

of

this

period.

In contrast

, the salaries of other

staffs

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staff

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declined from 28% in 1981 to only 15% of spending in 2001. But the cost of resources like books rose by 5% from 15% to 20% in the middle of the period,

then

fell to 9% in 2001.