The above chart show the details about the reason for the teenagers use their phone in one african country in the time span of 2016 and 2019. The chart contain 4 pie diagrams, one for each year.
When the reason was phone calls, in 2016 it was 10% and in 2017 it has increased by 3% and in 2018 it was 11% and in 2019 it was 5%.The usage of Digital camera was 15% in 2016, in 2017 it was 15%,in 2018 it wss 18% and in 2019 it was 20%.When the reason was email the usage was 25% in 2016, 24% in 2017, 20% in 2018 and 19% in 2019. And finaly the big man is here social network, in 2016 the percentage was 50, in 2017 it was 48, in 2018 it was 51 and finaly in 2019 it was 56 which is the highest of all time.
From this any person even without a analytical skill can easy understand aht is going on here. We can see that the main reason for teenagers that use phone was beacuse of social network.