The two pie charts illustrates the proportion of volunteers by organization including five main stages between 2008 and 2014.
Overall, the most notable change could be seen that environmental and sport increased significantly from 2008 to 2014. By contrast, educational decreased dramatically by the end of the period. Meanwhile, there were a slight change of visual art, medical care, and the unpopular sources.
According to the initial year, educational was the most popular, showing 24% in 2008. However, this figure then fall down to 17% by 2014. By contrast, environmental increased considerably from 21% to 29%, ranking the first in total. Similarly, sport started at 15% in 2008, and then, its proportion gone up to 25% by 2014.
Regarding others information, art and less popular sources began with 18% and 15%, respectively, with a slight variation between those sections . Susequent to this, its two figure falling down to 12% for art and 9% for others sources. Meanwhile, healthcare increased slightly to 8% by the end of years.