The graph below shows US consumers' average annual expenditures on cell phone and residential phone services between 2001 and 2010.

The chart provides information about the yearly average spending on three kinds of communication

services

of the US people from 2001 to 2010.

Overall

, there was an increase in the expenditure for cell phones and international fixed-line

services

, with cell phones witnessing a dramatic growth to become the most attractive one from 2006 onwards. Meanwhile, the figure for the annual cost of national fixed-line

services

underwent a constant decline throughout the period. In 2001, every US consumer paid about 200

USD

for mobile

services

, followed by a rapid expansion to exactly 500

USD

in 2006 and continuously climbed to just over 720

USD

at the end

of the stage examined. A similar change, but to a lesser extent, was seen in the amount spent

into

Change preposition

on

show examples

worldwide amenities, which started at 250

USD

in 2001 and reached approximately 300

USD

after 10 years.

Conversely

, at the beginning of the given duration, per US user expended 700

USD

in domestic fixed-line utilities, after which it experienced a gradual decrease before ending at around 400

USD

in 2010.