Manufacturing jobs in the United States have declined considerably over the past several decades, even as manufacturing output – the value of goods and products manufactured in the U.S. – has grown strongly. But while most Americans are aware of the decline in employment, relatively few know about the increase in output, according to a new Pew Research Center survey.

Four of every five Americans (81%) know that the total number of manufacturing jobs in the U.S. has decreased over the past three decades, according to the survey of 4,135 adults from Pew Research Center’s nationally representative American Trends Panel. But just 35% know that the nation’s manufacturing output has risen over the same time span, versus 47% who say output has decreased and 17% who say it’s stayed about the same. Only 26% of those surveyed got both questions right.

More from PEW Research Center>

Shares: