>About the data: We used the family income data from the 2013 American Community Survey. This counts only families, which the government defines as households w

>About the data: We used the family income data from the 2013 American Community Survey. This counts only families, which the government defines as households with two or more people related by birth, marriage or adoption. I find the fact that the data doesn't include data from single adults interesting and a potentially large gap in the data.