The provided pie chart presents data on adolescents regarding the purposes for using smartphones in a country in Africa over a three-year period from 2016 to 2019. From an overall perspective, it is apparent that using phones for taking photos and social networking purposes dominated, while the percentage of teenagers using phones for sending emails and making phone calls became less prevalent over the period shown. Additionally, social networks accounted for the largest portion throughout the period.
Delving into details, half of the respondents claimed that they used phones to access social networks in 2016. Despite a 2-percent decrease in 2017, this figure subsequently rose to 51% the following year and reached 56% in 2019. The percentage of adolescents who used their phones for digital camera purposes was 15% in 2016. After remaining stable until 2017, this figure experienced a modest increase of 3% to 18% in 2018 and continued to rise to 20% by 2019.
Regarding the remaining reasons, in 2016, correspondence was the secondary reason for adolescents to use phones, constituting about 25%. This percentage then decreased over the period shown and made up only 19% in 2019. Similarly, comprising 10% in 2016, the proportion of respondents using personal phones to make phone calls halved to 5% three years later despite a negligible rise in 2017.