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

The pie charts compare the amount of money allocated to various expenditures of a particular school in the UK in 1981,1991, and 2001.

Overall

, the highest amount of money was spent on teacher's salaries in all years,

while

insurance had the smallest portion.

It is clear that

the vast majority of total money was spent on teachers' salaries,

accuonted

Correct your spelling

accounted

for 40% in 1981, and increased to half of the expenses in 1991,

then

in 2001 it surprisingly experienced a slight decrease of 5%.

By contrast

, other worker's salaries showed a fall trend from 28% in 1981 to 15% in 2001. In 1981, resources and furniture had a similar share of 15%,

then

the former decreased to 5% and the latter increased to reach 20% in 1991. In 2001, the amount recorded was 9% and 23% respectively. The share of insurance was approximately the same in 1981 and 1991, following which experienced a

raise

Correct your spelling

rise

show examples

of 5%.