The bar chart presents the total number of minutes, provided in billions, of telephone calls in Australia, divided into three categories – local, national and international, and mobiles – during the year 2001-2008.
Overall, albeit national, overseas and mobile phone calls experienced a steady rise over the years, local calls went through an unpredictable trend.
In 2001, local phone calls were the top category, reaching 72 billion, which increased steadily until its peak at 2005, rising to 90 billion, before dropping back to 72 billion by 2008. On the other hand, the number of national and international calls experienced a slight increase every year, 38 billion in 2001 until its maximum at 61 billion in 2008. Additionally, mobile calls, which was the group with the fewest users, only had 2 billion users in 2001, which then skyrocketed to 46 billion by the end of the timeline.
In a nutshell, Local calls were the only category that underwent an unsteady trend, while other groups had a steady rise. Furthermore, local calls stayed at the top of the data during the observed time span, and mobiles as the group with the fewest number in the same time period.