Eg. While the number of people in these goods producing industries went down, the number of people in the service industries went up.
Eg. Over the years, the child labor laws became much stricter and by 1999, it was illegal for anyone under sixteen to work full-time in any of the fifty states.
Eg. In 1900 the average per capita income was $4,200.
Eg. One the important benefits most workers received later in the century was the health insurance.