Zorax, Another example using "rate" outside the speed zone. That is, as used in the number of killings per some number of an specified population.
Many people believe Chicago is the murder capital of the States. You see below actually Phoenix kills it. Excuse the pun. Chicago actually is listed seventh of comparable cities by population size.
In case you haven't seen it yet
These 4 charts describe police violence in America
"Minneapolis police officer Derek Chauvin, who kneeled on George Floyd, has murder charge upgraded; three other officers charged"
[...]
Police killings per capita vary dramatically across America’s largest cities, the data shows.
The rate of police killings is highest in St. Louis, where police killed about 18 people per million residents annually between 2013 and 2019. In New York, where the rate of police killings was the lowest, police killed about 1.3 people per million residents in those years.
St. Louis is also significant because of its proximity to the site of one of the police killings that was key in catalyzing the Black Lives Matter movement. In 2014, Michael Brown, a black 18-year-old, was shot by the white police officer Darren Wilson in Ferguson, Mo., located about 10 miles outside St. Louis.
Wilson was not charged with a crime and a 2015 report by the Department of Justice found that his actions were not “objectively unreasonable.” But Brown’s killing, and the phrase “Hands up, don’t shoot!” became symbols of the Black Lives Matter movement that developed over subsequent years.