IETLS Writing Task 1. Please review my essay.

The line graph shows the average yearly spending by Americans on mobile and landline phone services between 2001 and 2010.

It is clear that spending on mobile phone services went up significantly over the 10-year period, while the figure for landline phones tended to decrease steadily. The year 2006 marked the point at which expenditure on cell phone services overtook that for residential phone services.

In 2001, US consumers spent an average of nearly 700$ on residential phone services, compared to only around $200 on cell phone services. Over the following five years, average spending on mobile phone services rose by nearly $300, while the figure for residential phone services declined by approximately $200.

In the year 2006, Americans paid out an equal amount of money on both types of phone service, spending just over $500 on each. By 2010, expenditure on mobile phone services had gone up to over $750. By contrast, this figure for residential phone services had declined to about $400 (over a half of this amount).