The two pie charts provide data about the rate of volunteering by different organizations in 2008 and 2014.
Overall, it is clear that the figure for environmental, sport and health care experienced a upward trend, the opposite was true for that in the rest of the groups. In addition the ratio of health care was the lowest point in the period shown.
In 2008, educational’s volunteers acounted for the highest percent, at 24% of the total organizations volunteering, while the rate of that in environmental and sport were steady lower, at 21% and 15% respectively. By contrast, the lowest proportion with only 7% belonged to health care.
In 2014, the percentage of environment volunteers witnessed a dramatic rise and marked the highest point in the chart, at 29%. That figure for health care and saw a significant growth from 15% to 25%, while art and others fell remarkably to 12% and 9% respectively. Volunteers of health care increased gradually by 1% but still remained the lowest part of all. 
The two pie charts provide data about the rate of volunteering by  
different
 organizations in 2008 and 2014. 
Overall
, it is  
clear
 that the figure for environmental, sport and  
health
  care
 experienced  
a
 upward trend, the opposite was true for that in the rest of the groups. In  
addition
 the ratio of  
health
  care
 was the lowest point in the period shown.
In 2008, educational’s volunteers  
acounted
 for the highest percent, at 24% of the total organizations volunteering, while the rate of that in environmental and sport were steady lower, at 21% and 15%  
respectively
. By contrast, the lowest proportion with  
only
 7% belonged to  
health
 care.
In 2014, the percentage of environment volunteers witnessed a dramatic rise and marked the highest point in the chart, at 29%. That figure for  
health
  care
 and  
saw
 a significant growth from 15% to 25%, while art  
and others
 fell  
remarkably
 to 12% and 9%  
respectively
. Volunteers of  
health
  care
 increased  
gradually
 by 1%  
but
  still
 remained the lowest part of all.