The three pie charts compares how much money a school in the UK spent every year in 1981, 1991 and 2001.
It is clear that the salaries were the major expenditure of the school and the proportion of spending on other workers’ salaries were increasing in these three years.
In 1981, the percentage of annual spending on teachers’ salaries was 40%, which rose up to 50% in 1991, with the decrease by 5% in 2001. By contrast, 15% of the budget of the school went to furniture and equipment, after which the figure dropped to 15%. While 2001 saw a considerate rise of the percentage of this category, with the figure of 23% of the spending in this year.
Resources, such as books cost 15% of the budget of the school in 1981, reaching up to 20% in year 1991, while the percentage declined to 9% after 10 years. At the same time, there was a decline in the proportion of the school spending on other workers’ salaries, from 28% to 15% in the two decades. (We can also see that the figures of the expenditure on insurance remained comparatively steady, lower the 9% every year. )
The three pie charts compares how much money a  
school
 in the UK spent every  
year
 in 1981, 1991 and 2001.
It is  
clear
 that the  
salaries
 were the major expenditure of the  
school
 and the proportion of  
spending
 on other workers’  
salaries
 were increasing in these three years.
In 1981, the percentage of annual  
spending
 on teachers’  
salaries
 was 40%, which rose up to 50% in 1991, with the decrease by 5% in 2001. By contrast, 15% of the budget of the  
school
 went to furniture and equipment, after which the figure dropped to 15%. While 2001  
saw
 a considerate rise of the percentage of this category, with the figure of 23% of the  
spending
 in this year.
Resources, such as books cost 15% of the budget of the  
school
 in 1981, reaching up to 20% in  
year
 1991, while the percentage declined to 9% after 10 years. At the same time, there was a decline in the proportion of the  
school
  spending
 on other workers’  
salaries
, from 28% to 15% in the two decades.  
(We
 can  
also
  see
 that the figures of the expenditure on insurance remained  
comparatively
 steady, lower the 9% every  
year
. )