This excerpt from an infographic published by the federal government presents a lot of information about employment in the civilian labor force in the United States, now and in 1970. The main theme is the comparison between men and women: how many are in the workforce and what jobs they hold or held. Because the main basis of comparison and contrast is the sex of workers, the writers chose a basic table structure, with data about men in one column and data about women in the other.

Source: U.S. Census Bureau, 2014: http://www.census.gov/how/infographics/acs_infographic_eeo.html.