Not to pick nitts...
but Global Knowledge in an IT training company that was involved in the survey, it is not a global survey. Granted the poor sentence structure in the takeway does not make that clear (especially if you do not know that Global Knowledge is a company).
Perhaps something like the following would have been better:
Takeaway: Is your salary average for your geographic area and area of expertise? Check out this graphic form of the "IT Salary and Skills report" for the U.S. from TechRepublic and Global Knowledge .