Band 9: The chart shows the results of surveys in one African country asking teenagers the main reasons for using their phones between 2016 and 2019. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The provided visual data presents the outcomes of surveys conducted in an African nation, aimed at adolescents aged between 13 and 19, regarding the primary reasons for smartphone usage over a four-year period from 2016 to 2019.

Overall, social networks emerged as the predominant reason for phone usage among teenagers, constituting approximately half of the total usage throughout the years. Following social networks, emails accounted for about a quarter of usage, while digital cameras and phone calls represented lesser motivations for phone usage.

Social networks consistently maintained their significance, occupying around 50% of the reasons for phone usage annually. On the other hand, email varied slightly, with approximately 25% of usage in 2016 and 2017, decreasing to around 20% in 2018 and 2019. Although digital cameras were the third most prominent reason for phone usage in 2016 and 2017 at 15%, their popularity declined to 5% by 2019. Conversely, phone calls experienced a minor increase in 2019 compared to the preceding years, reaching 20%.

In conclusion, social networks notably stood out as the primary motivation for mobile phone usage among teenagers, followed by emails, digital cameras, and phone calls, in decreasing order of significance.