The provided pie charts illustrate the results of surveys conducted among teenagers in an African nation, detailing their primary motivations for mobile phone usage from 2016 to 2019.
Overall, it is evident that the predominant reason for mobile phone use among this demographic has consistently been phone calls, whereas the significance of social networks has fluctuated over the examined time period.
In 2016, the distribution of phone usage reasons was dominated by phone calls, accounting for 50% of responses. This was followed by the digital camera feature, which represented 25% of the total, while email usage and social networking accounted for 15% and 10%, respectively. A slight decline in the usage of phone calls was observed in 2017, falling to 48%, although this was accompanied by a marginal increase in social network engagement, which rose to 13%. The digital camera saw a slight decrease to 24%, while email maintained a steady 15%.
The trends continued into 2018, where phone calls regained a slight majority at 51%. Social networks experienced a decline to 11% and digital camera usage further reduced to 20%, while email usage increased to 18%. By 2019, the preference for phone calls escalated to 56%, marking the highest point over the four years. In contrast, social network engagement plummeted to just 5%, the lowest recorded, and the digital camera feature maintained only 19% of preferences. Email usage, however, rose to 20%, indicating a shift towards more traditional forms of communication among teenagers.