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 give information about the changes in the amount of money spent per year by a certain school in the United Kingdom in three decades starting 1981.
In general, the teachers’ salaries comprised the lion’s share of the total expenditures, while a tiny fraction is only reserved for insurance. Over the thirty-year period, a gradual decrease is seen in other workers’ salaries, whereas teachers’ salaries, resources and furniture and equipment have fluctuating values.
In 1981, two-fifths is spent on teachers’ salaries, which rose up to 50% in 1991 and finally to 45% in 2001. These oscillations are also observed in resources which had an increase up to 20% in 1991 to a sharp decline to 9% by 2001. From 1981, furniture and equipment noticed a remarkable budget cut of almost half with only 5% by 1991 and had the second biggest share ten years later with 23%.
Linear opposing trends existed in insurance and other workers’ salaries, which noted a four-fold increase to 8% in 2001, and a moderate decrease to 15% in 2001 from almost less than a third in 1981, respectively.