The graph below shows consumers average annual expenditure on cell phone national and international fixed line and services in America between 2001 and 2010

The given chart illustrates the cost of users’ average each year on mobile phones, domestic and worldwide fixed-line services in the US from 2001 to 2010.
As can be seen from the chart, while the yearly spending on mobile phones increased significantly, the opposite was a stability in the figure for global fixed-line services. Besides, the figure for international landline service was the lowest during the period.
Over the next five years, the cost of national fixed-line phones fell by $200. By contrast, yearly spending on cell phones witnessed a significant increase of $300. At the same time, the figure for overseas landline services fluctuated slightly below $300.
From the year 2006 onwards, the expense on mobile phone services went up considerably and then reached a peak of $750 in the last year. In contrast, the year 2010 saw a substantial decrease in the spending on domestic fixed-line phones before hitting the lowest point of $400. Moreover, there was a continuous stability at $300 at the end of the period.

Please Review My IELTS Writing Task 1
Thank you