The three pie charts below show the changes in annual spending by a particular UK school in 1981, 1991, and 2001. Summarize the information by selecting and reporting the main features, and make comparisons where relevant. The three pie charts below show the changes in annual spending by a particular UK school in 1981, 1991, and 2001. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts illustrate the comparative distributions of the annual total school

expenditure

in some selected schools in The UK in 1981 and 1991.

Overall

, teachers'

salaries

had the lion's share of the school spending in both years, increasing over the next ten years.

While

the percentages of spending on other workers'

salaries

and resources from the whole spending rose during the period shown, the level of

expenditure

on furniture and equipment fell considerably. In 1981, 40% of the total school spending was allocated to the teachers'

salaries

which made the greatest

percentage

.

Moreover

, the proportion of

expenditure

on resources was as same as that of furniture and equipment.

While

other workers'

salaries

were responsible for 28% of the total expense, 2% of the whole

expenditure

was for the insurance costs. Over the next ten years, the spending on the teachers'

salaries

remained the highest

percentage

of spending, comprising half of the total spending in schools.

Although

the spending on resources showed an increase of 5% to 20% in 1991, the

percentage

for furniture and equipment experienced a significant decrease to 5%.

According to

the pie charts, other workers' income was 22% of the total spending in 1991, as compared to 28% of that in 1981.

Whereas

the spending on insurance increased to 2%, it remained as the item with the lowest

percentage

among other items.