The given line graph illustrates the average yearly spending on three phone services, namely cell phone, national and international fixed-line services from 2001 to 2010.
Overall, the three types of service fluctuated with different trends. cell phone services were the only one seen the upward trend. on the other hand, national fixed-line service experienced a gradual fall, while international fixed-line one remain stabled during that period.
in 2001, people spent on national fixed-line services highest, at $700, much more than on cell phone and international fixed-line services, with $200 and around $250 respectively. afterward, there was an opposite change with the decrease in national fixed-line service and the increase in cell phone services. in 2006, these two services had the equal expenditure, at $500, and international fixed-line service witnessed a slight rise to $300.
since then to 2010, three services remained their trends. cell phone services began with the lowest position but ended up with the highest position, with over $700. the expenditure on national fixed-line service was $400 and international fixed-line service stayed unchanged with the amount of $300 on spending.
