The line graph gives information about the amount of money spent each year on 3 different phone services ( cell phone, national and international fixed-line services) over 9 years, starting 2001 to 2010.
Overall, it can be seen that there were different changes in 3 different contact services in between 2001 and 2010. While fixed-line service of international only had slight fluctuation, cell phone and national service opposited significantly.
Turning to the specific data, in the first year, the amount of dollar spent on national fixed-line service was by far the highest, with 700 dollars. In contrast, the expenditure on cell phone and international fixed-line service were much lower, about 200 dollars and nearly 250 dollars respectively.
In the following year, the statistics changed a lot, the first change was serious decline of the amount of money on national fixed-line service, from 700 dollar to 400 dollars in 2010. On the contrary, these on service of cell phone grew rapidly, in 2003 and 2006, it overtook the international and national fixed-line service and reached at peach at 750 dollars in 2010. Meanwhile, the expenditure on fixed-line service of international was relative stability, in 2001 to 2003, it increased slightly from nearly 250 dollars to over 300 dollars but then it was stable at 300 dollars to 2010.