Band 8+: You should spend about 20 minutes on this task. The bar chart below shows the total number of minutes (in billions) of telephone calls in Australia, divided into three categories, from 2001- 2008. Summarise the information by selecting and reporting the main features and make comparisons where relevant. You should write at least 150 words.

The bar graph illustrates the distribution of Australia telephone calls into three categories over the period from 2001 to 2008.

Overall, there was a general increase in the number of calls made in all three categories from 2001 to 2008. Mobile calls experienced the most significant rise, followed by National & International calls, while Local calls remained relatively stable.

When focusing on the data from 2001 to 2005, it is evident that the number of calls made in the Local category gradually increased. Specifically, the number of Local calls rose from 72 units in 2001 to 90 units in 2005, marking a consistent upward trend. Conversely, the number of National & International calls also exhibited a steady growth, increasing from 38 units in 2001 to 50 units in 2005. In contrast, Mobile calls demonstrated a more rapid escalation, with the figure soaring from 2 units in 2001 to 12 units in 2005, showing a substantial surge in usage.

From 2006 to 2008, the trend in the number of calls made shifted slightly. Local calls declined from 84 units in 2006 to 72 units in 2008, indicating a decrease in usage. On the other hand, National & International calls remained relatively stable, with a slight decrease from 55 units in 2006 to 46 units in 2008. Notably, Mobile calls saw a significant surge during this period, more than doubling from 23 units in 2006 to 51 units in 2008, highlighting a remarkable increase in mobile phone usage for calls.