The pie charts compare how many people used social media channels over the period between 2011 and 2013.
Overall, what stands out is that the number of Facebook users was declining over the given period, though it made up the majority. Meanwhile, other apps experienced an upward trend.
To begin with, the percentage of individuals using Google and Pinterest was 5% each in 2011, while over the next 2 years it minimally increased to 8% (Pinterest) and 14% (Google) by 2013. In terms of LinkedIn, the original 10% in 2011 saw a negligible increase, making up 12% in 2012 and 15% by 2013.
To be more detailed, we can see that Twitter users comprised almost a quarter over the given period and witnessed a gradual upward trend. In 2011, its percentage was 21% and had grown by 2% two times, indicating 23% in 2012 and 25% by 2013. In contrast, the reverse trend was true for the number of Facebook users, which initially indexed at roughly 60% and decreased by 10% in 2012, covering nearly half (49%). Moreover, by 2013 it saw a considerable downward trend, thereby its percentage of followers comprised 38%