The charts below show the percentage of volunteers by organizations in 2008 and 2014

Given are the pie charts revealing the proportions of people who volunteer in various organizations in two years, 2008 and 2014.
Overall, it is immediately apparent that there were downward trends in environmental, sport and art, while the figure of volunteer participation in health care and educational. Additionally, the percentage of health care volunteers was the lowest during the period.
As can be seen from the graph, in 2008, the largest contributors was recorded for the people volunteering in environmental at 24%. However, the proportion of it decrease rapidly to 17% and be replaced by those in education that went up slightly from 21% to 29% in 2014. Meanwhile, the figure for volunteer support in health care was the lowest during 2 years.
In comparison, between 2008 and 2014, sports organization's figures, while the figure for environmental, art and others organization was dropped slowly, by 17%, 12%, and 9%, respectively.