The U.S. Bureau of Labor Statistics has published the 2012–2013 edition of their Occupational Outlook Handbook detailing the prospects of many professions regarding wages, employment, and more.
The section on medical assistants includes some promising statistics. Among their "Quick Facts" are a 31 percent increase in job outlook (much faster than average) and an employment boost of almost 163,000 jobs through 2020. Visit the page for more key information !