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.
Drawn from multivariate regression models. Continuous variables scaled to 0–1 range, so estimate reflects estimated change in topic proportion due to increase from minimum to maximum value.
