xkcd poked fun at the sometimes questionable color choices of researchers.
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What you get
About 18 percent of couple households are single-income. I wanted to know what the earner in these homes usually do.
See who has it worse off and better than you.
Watch the regional changes across the country from 1990 to 2016.
Since 1972, the General Social Survey has asked people about their happiness. It never changed much — until 2020 happened.
