Band 9: The graph shows average annual expenditures on cell phone and residential phone services between 2001 and 2010. Summarize the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

The line graph illustrates the average yearly expenses on mobile phones and landlines in America over a period of 10 years, from 2001 to 2010. Overall, it is evident that the trends for both services are reversed, with cell phone expenses increasing and residential landline expenses decreasing throughout the period.

In 2001, the cost of mobile phone services started at around $200. This figure then dramatically increased to $600 by 2007, with a slight fluctuation around $100 between 2007 and 2008. Nevertheless, mobile phone expenses reached a peak of almost $750 in 2010. Another minimal increase was observed between 2002 and 2003, of approximately $100.

Conversely, landline phone services began at around $700 in 2001 and then significantly decreased to nearly $400 by 2010. There was a slight drop of around $120 between 2006 and 2007. Notably, the expenses for both services crossed each other in 2006 at approximately $550.