The color of the circles corresponds to the homicide rate and the size to the number of homicide reports (which may refer to more than one victim). You can interactively filter the municipios shown on the map based on their homicide rates by using the histogram widget in the top right corner of the map. All rates shown on the map are annualized, but some municipios don't provide data for the whole six months, if you hover over the circle a tooltip will show the number of crime/months the municipio reported. Some municipios report their homicide counts as zero when in fact it should be a missing value and not all municipios have started reporting. Also, some states publish crimes at the district level and report crimes that occurred in more than one municipio as if it occurred in a single one. Homicides include feminicides.