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The graph illustrates the average annual consumer expenditure on various phone services in America from 2001 to 2010, specifically focusing on cell phone services, national fixed-line services, and international fixed-line services.

From the data, it is evident that spending on cell phone services consistently increased throughout the decade. In 2001, expenses were around $300, reaching nearly $800 by 2010. This trend highlights the growing reliance on mobile technology among consumers.

In contrast, national fixed-line services exhibited a declining trend. Starting at approximately $600 in 2001, the expenditure dropped to around $300 by 2010. This decrease suggests a shift away from traditional landline services as people increasingly adopted mobile phones.

International fixed-line services showed a relatively stable trend with minor fluctuations. Expenditure began at about $200, rising slightly to around $300 by the end of the decade. This modest increase indicates a consistent, though not significant, interest in international communication through fixed lines.

Overall, the data reflects a clear transition from traditional landlines to mobile services, mirroring broader technological changes in communication preferences among consumers.