The given bar chart give information about the number of minutes (in billions) spent on telephone calls by local, national & international, and mobiles in Australia over 7 years. As can be seen, the trend of local phone calls fluctuate, while by national & international, and mobiles phone calls rose every year.
Australia telephone calls by local start at 72 minutes billions in 2001. It was gradually increase for about 4 years, reaching the number of 90 minutes billions. In 2006, there was a declined around 6 minutes billions in telephone calls by local. The trend decreased by 5 minutes billions every year, reaching the same amount of total in 2001.
National & international calls started at 38 minutes billions in 2001. The trend showed improvement and reached the total of 61 minutes billions in 2008. Mobiles started at the lowest number; 2 minutes billions in 2001. The number climbed up to 23 minutes billions in 2006 and rocketed to 39 minutes billions in 2007 and continue increased in 2008 by 46 minutes billions.