For CS graduates, I see the 2014 Salary as $62,103 and the 2015 Salary as $65,004. Which is actually a 6% increase. The 2014 was a 6% increase over 2013. So more than 10% increase in two years. What are you seeing?
2014 67,500. 2015 65,004. Down about 3.7%, which adds up over time.
Either way, from my point of view, the software "profession" is dead in the water unless real change in the industry and our government happens.
Because cost of labor (including salaries) compete with returns on capital, and, well, people who favor "capitalism" rather than, say, "laborism" tend to hold political (as a consequence of economic) power.