Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A short bar indicates an observed value of household’s cost-income levels. A long bar indicates the median. Shaded areas show the density of the distribution. P-values were calculated using a Wilcoxon rank-sum test. A log scale was used for the y-axes.
