The pie chart illustrates the expenditure made on insurance, teachers' salary, furniture and equipment, resources, and other workers salary for a period of 20 years. Overall, it is seen that the highest amount was spent on teachers salary and other workers salary while the least was on insurance.
In 1981, the biggest allocation was made to the school 40%, it rose gradually to half of the budget in 1991, as compared to 2001 that experienced a decrease to 45%. In contrast, other workers wages took off at 28% in 1981, a difference of 8% was seen in 1991. Whereas, less than a fifth of the proportion was spent in 2001. Furniture and equipment was bought with 1/5th of the total allocation, same amount was used in buying books in 1981. Whereas, 1991 and 2001 had 5% and 23% respectively. However, 2% of the 1981 budget was used for insurance, a slight increase of 1% seen in 1991. Finally, more than double of the value in 1991 experienced in 2001. 
The pie chart illustrates the expenditure made on insurance, teachers'  
salary
, furniture and equipment, resources, and other  
workers
  salary
 for a period of 20 years.  
Overall
, it is  
seen
 that the highest amount  
was spent
 on teachers  
salary
 and other  
workers
  salary
 while the least was on insurance.
In 1981, the biggest allocation  
was made
 to the school 40%, it rose  
gradually
 to half of the budget in 1991, as compared to 2001 that experienced a decrease to 45%.  
In contrast
, other workers wages took off at 28% in 1981, a difference of 8% was  
seen
 in 1991.  
Whereas
, less than a fifth of the proportion  
was spent
 in 2001. Furniture and equipment was  
bought
 with 1/5th of the total allocation, same amount was  
used
 in buying books in 1981. Whereas, 1991 and 2001 had 5% and 23%  
respectively
.  
However
, 2% of the 1981 budget was  
used
 for insurance, a slight increase of 1%  
seen
 in 1991.  
Finally
, more than double of the value in 1991 experienced in 2001.