The three pie charts below show the changes in annual spending by a particular UK school in 1981, 1991 and 2001.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.

Reading material
Answering questions Subject tense: past tense Title requirements: Combine the data information of the three pie charts, compare and explain the changes in the proportion of each item in the 20 years from 1981 to 2001. Description of key points: ① In the three pie charts, teachers' salaries account for the largest proportion, 40%, 50% and 45% respectively. Insurance has the smallest share at 2%, 3% and 8%. ②In the three pie charts, the proportion of other workers' salaries gradually decreased, from 28% to 22%, and finally to 15%; the proportion of Insurance increased gradually, from 2% to 3%, Finally increased to 8%. ③In 2001, the proportion of Furniture and equipment increased to 23%; the proportion of Resources decreased to 9%.
TEST TAKER'S RESPONSE 1.
TEST TAKER'S RESPONSE 2.