The graph illustrates the average amount of money spent annually on residential and cell phone services from 2001 to 2010. It is clear that cell phone services spending witnessed an upward trend, while the opposite was true for that of residential phone services. In addition, both figures met at the same record in 2006.
In the first examined year, average expense on landline phone services began at approximately 700 dollars, whereas the cell phone services spending was just around 200 dollars. Over the following five years, there was a sharp increase in expenditure on mobile phone services to over 600 dollars, while spending on traditional landline phone services saw a dramatic decline to below 600 dollars.
In 2006, US consumers paid out the same amount of money on both types at roughly 550 dollars. From this year onwards, the figure for expenditure on cell phone services continued to rise considerably to roughly 800 dollars in 2010, making nearly a fourfold jump relatively to its initial figure in 2001. During the same period, expense on residential phone services experienced a steep fall and went on to steadily decrease to about 400 dollars, which is only half of the starting point.