Well, if you want data, according the social security adminsitration the average wage has gone up by about $8000 since 2010; however the median wage has gone up by something more like $3000.
This pretty much tells you what you'd expect under trade liberalization: it helps higher wage workers with specialized skills more than it does commodity labor.
The key to understanding data like this, as a sociology professor once told me, is to disaggregate it. If you do you'll see that while the averages and even median that looks fairly rosy over the last thirty years, the picture for median and below has been almost flat for a generation.
That doesn't sound too bad. Sure the wealthy and the well-to-do are getting richer, but nobody (at least no economic slice -- geography tells a different story) is doing worse. But even that result has to be disaggregated. On one hand you have only a modest increase in the overall cost of consumer goods (thanks free trade!); this modest increase along with modest compensation increases produces no growth or loss of purchasing power below median income.
What this means is that median income people can buy a lot more TVs and home entertainment crap than they could in the 70s, but as that stuff has become cheaper paths to upward mobility have been closing and paths to downward mobility have been opening.