Average yearly spending of Americans on mobile phone and landline phone services over a decade

Us consumers average annual expenditures on cell phone and residential phone service

The line graph compares average yearly spending of Americans on mobile phone and landline phone services over a decade.

It is clearly seen that, over the period of ten years the residential phone services decreased tremendously while cell phone consumers increased sharply.

As can be seen, in 2001 the annual expenditure of landline phone service declined dramatically. Declining from around $700 to close to $500 over the following five years. On the other hand there was a sharply rose in the spending on mobile phone service which was from $200 to a little over $500 from 2001 to 2006.

Having a close look, the average annual expenditure of US paid out the same amount of money on both type of phone service which was over $500 on each services. Although the expenditure of residential phone service dropped, the spending of cell phone service soared between 2001 and 2010.

It would be easier for others to review your essay is you included the picture of the graph.
1, "As can be seen, in 2001 the annual expenditure of landline phone service declined dramatically. Declining from around $700 to close to $500 over the following five years"

These should be 1 sentence, as the phrase "Declining from around $700 to close to $500 over the following five years" is incomplete. You should write "As can be seen, in 2001 the annual expenditure of landline phone service declined dramatically, from around $700 to close to $500 over five years"

2, "On the other hand there was a sharp rose in the spending ..."
Overall, i think you should pay more attention to the grammar. You can use simple vocabulary, but grammar accuracy and variety are very important.

@ngocmaing
Thank you for your advice😊@ngocmaing