The line graph comapres average annual expenses on cell phone and residental phone services during a nine-year period. Overall, what stands out from the graph is that spending money for cell phone sevice soared over a period while average expenditures for residental phones plummeted. Another interesting point is that the figure for cell phone service rose nearly fourfold times from the beginig of a period till the end.
Using residental phones was more popular than cell phones in the initial year, spending for them just under 700$ and 200$, in turn. The figure for residental phone service fell dramatically, reaching 550$ in 2006. After that there was a gradual drop in 2010, about 400$.
As regards spending for cell phone service, it started at just 200 $, and rosed sharply then crossed with figure for residental phone service in 2006, hitting the same rank approximately 550 $. After that it continued growing till the end of the period, reaching roughly 750$.