The chart given a comparison of different services in term of yearly spending in America from 2001 to 2010.
In general, while the amount money spent on mobile phone services increased significantly, the opposite was true for national landline phone expenditure. Additionally, the figure for international fixed-line services remained the lowest during the period.
In 2001, the average American spent a total of $700 on national landline phone, which was 3.5 times the expenditure on mobile phone and international landline services, approximately $200 on each. Over the next five years, whereas the average amount poured into cell phones experienced a significant increase by $300, yearly spending on national landline phone dropped by $200. At the same time, overseas landline service fluctuated, around $300.
The expenditures on mobile and national fixed-line services converged in 2006, at $500 on each. Subsequently, there was a high demand among US residents for mobile phones, which made it surpass national fixed-line phones in term of how much money was spent to become the most common method of communication . More specifically, $750 was poured into mobile phone services, while the figure for national landline phones continue to drop to $400 in 2010. Meanwhile, the figure for international landline services slightly above $300.
