The USA has lost a lot of manufacturing jobs over the past few decades and for a while the number of jobs was dropping drastically. But it now looks like in the past few years that the losses are leveling off.
Here are the total # of manufacturing jobs in the us (in thousands):
From 1998 to 2003 we had a -16.9% decline in manufacturing jobs or -3.7% annually. But then from 2003 to 2006 the decline in manufacturing jobs slowed to -2.3% or -0.7% annually.
Source of information is the Bureau of of Economic Analysis Full-Time and Part-Time Employees by Industry