Units? Weight? Volume? Dollar Value?
EDIT: here it is, from 2012. I saw it again in 2016 when it was brought up to explain Trump's election, by way of reminding American elites just how bad "deindustrialization" and globalization really had been for the heartland:
https://www.washingtonpost.com/business/economy/economists-o...
"Moreover, at least some of the productivity gains shown in U.S. computer manufacturing reflect the increasing power and decreasing prices that come with innovation. When a computer chip doubles in efficiency, that can turn up in a doubling of output and productivity in computer manufacturing. But that is not what is ordinarily thought of as manufacturing efficiency.
“It is innovation that makes it look like they’re manufacturing a whole lot more in the U.S. than they really are,” Atkinson said."
Gag
Manufacturing's share of GDP falls in all OECD countries. Services grow faster. Even manufacturers get more and more income from services.