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

The

three

pie charts provide information about

a

Correct article usage

the

show examples

proportion

of annual

expenditure

in a UK school in

three

different

years

, (1981, 1991, and 2001)

Overall

,

it is clear that

the highest amount of money was spent on teachers’ salaries in all

years

,

while

insurance received the smallest

proportion

.

It is clear that

the vast majority of the total

expenditure

was allocated to teachers' salaries in all

three

years

, accounting for 40%, 50%, and 45% of total spending respectively. The school spent

a

Correct article usage

the

show examples

second largest

proportion

of its

expenditure

on other workers’ salaries in both 1981 and 1991, at 28% and 22% respectively.

However

,

this

proportion

decreased to only 15% in 2001.

While

spending on furniture and equipment decreased from 15% to 5% between 1981 and 1991, it increased by almost a quarter in 2001. In 1981, 15% of the school's

expenditure

was on resources, which increased slightly in 1991 and dropped to 9% in 2001.

However

, insurance received the smallest share of the

expenditure

in all

three

years

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