[cornel_io]

That's probably what it means but it's also a weird thing to measure because depending how you define "average" you can juke the stats any way you want. If I said "hire" to a random resume that comes in for a job, the value of either the median or mean developer is likely very close to zero if not negative, and that's probably true even if you just look at devs who are actually employed writing code for generic companies. If you restrict to better companies you quickly climb the productivity curve, and at places like Google it's pretty rare to find someone who is a 10x dev as compared to company peers (though you can have 10 or 100x impact pretty easily if you're good at almost any part of business other than writing code and know how to thrive in a bloated corporate environment).