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

The given pie charts provide information about the yearly expenditures of a UK school in three different years 1981,1991 and 2001.

Overall

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,

it is clear that

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the

spendings

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on salaries were the highest every year,

whereas

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the

spendings

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on insurance were the lowest.

According to

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the graph,

this

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school

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school's

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expenditures in 1981,1991 and 2001 in terms of wages of teachers were 40%, 50% and 45% respectively.

In addition

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to

this

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,

Correct article usage

the proportions

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proportions

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proportion

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of money spent on insurance didn't

exceeded

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exceed

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10% in any year, reaching 8% in 2001.

Moreover

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, the

expenditures

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expenditure

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on learning resources,

such

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as dictionaries and books was 15% in 1981. After which, the figure peaked at 20% and dropped dramatically to 9% in 2001. Regarding annual

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spendings

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spending

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on other

staffs'

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staff's

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salaries, the figure decreased gradually over the period and plumbed in 2001 with 15%

money

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of money

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spent on

paychecks

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the paychecks

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of these people.

Furthermore

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, the statistics of

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spendings

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spending

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on both equipment and furniture fluctuated and reached 23% in 2001.