Three pie charts below shows the changes in annual spending by a particular UK schools in 1981, 1991 and 2002.

The three charts illustrate the variations in annual expenditure in UK schools in 1981, 1991 and 2001.

Overall

,

while

teachers'

salaries

remained the schools' greatest cost, furniture and equipment overtook other workers'

salaries

to become the second-largest expenditure by 2001. The highest

proportion

of total

spendings

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spending

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were allocated to teachers'

salaries

, accounting for 40%, 50% and 45%. The schools spent the second largest

proportion

of

its

Correct pronoun usage

their

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expenditure on other workers'

salaries

in both 1981 and 1991 at 28% and 22% respectively.

However

,

this

proportion

decreased to only 15% in 2001.

Although

spending on furniture and equipment dropped from 15% to 5%, in 1981 and 1991 before it significantly

growed

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grew

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to 23% replacing other workers'

salaries

, by the year 2001. 15% of

proportion

Correct article usage

the proportion

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was allocated

on

Change preposition

to

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recources

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resources

. After a small growth in 1991, the figure went down to only 9% in 2001. Insurance

proportion

received the smallest percentage of

spendings

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spending

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, at 2%, 3% and 8% respectively.