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

Contained in the pie charts is data pertaining to the expenditure in a UK school in three different timestamps, 1981, 1991, and 2001.

Overall

, Insurance, teachers’ salaries and equipment witnessed varying degrees of increase,

while

other workers’ payment and resource patterns dropped.

Additionally

, academic staff salaries contributed the largest proportion of expenditure throughout the survey

whereas

insurance had the smallest share.

To begin

, wages paid to the teacher accounted for the most significant in 1981. Before increasing to a half

then

slightly went down by 10% in 2001.

This

statistic was followed by other

Fix the agreement mistake

workers’

show examples

worker’s

Change noun form

workers’

show examples

salaries, in 1981, the number was nearly a

third,

after which a minimal decrease in 1991

then

ended with 15% after 10 years. A similar trend was observed in money spent on furniture and equipment, beginning at 15%

then

it experienced a noticeable fall of 10% in 1991 before having a remarkable rise to a quarter

at the end

of time shown. Turning to the expenditure on resources, the figure started at 15%, which is equal to furniture and equipment.

Subsequently

, it went up by only 5% during 10 years, in the third year shown, it levelled off at approximately one-tithe.

Finally

, Insurance had by far the smallest category out of five at the beginning with 2%,

this

figure changed small throughout a decade until 2001 when it climbed fourfold.