The chart illustrates the proportion of mobile phone users in a country across different age groups—less than 15, 16-30 years, 31-50 years, and 50 or older—from 1998 to 2000. Overall, the share of people in the youngest and oldest age groups was significantly lower compared to the other categories. Among mobile phone users, those aged 16-30 were the most dominant, while 31-50-year-olds also had high usage rates. Another notable trend is that 16-50-year-olds gradually reduced their phone usage over the years, while the other categories steadily adopted mobile phones.
Initially, the proportion of people younger than 15 was 2%, which increased to 8% the following year and reached 9% in the final year. Likewise, the proportion of people older than 50 was 4% at the beginning, rising to 8% in 1999 and 10% in 2000.
In 1998, the respective figures for 16-30-year-olds and 31-50-year-olds were 53% and 41%. These proportions then decreased to 45% for the former and 39% for the latter the next year. Finally, at the end of the period, the figures for these age groups dropped slightly, finishing at 44% and 37%, respectively.