[Wyatt's Torch]

Manufacturing jobs have been declining for decades (fact).

Manufacturing output as a percent of GDP has remained stable (another fact)

The definition of productivity output per unit of labor.

Therefore productivity has been improving over that timeframe.

[Monorprise]

Interesting graph and facts. It seems all the expansion in industrial output in theses united states have come from mechanization and technical improvements.

It should be also interesting to compare industrial imports along the same lines to give us an idea of the growth of consumption and outsourcing.