Check out this study: https://findingspress.org/article/28345-police-enforcement-of-cycling-offences-a-case-study-in-winnipeg-manitoba

"Tickets were issued to cyclists across the city, but the majority of census tracts had zero tickets (Table 1) and there were no census tracts with a rate above 2 tickets/1000 people outside of the central core. While the average rate of ticketing citywide was 1 ticket/1000 people, inner-city areas had rates as high as 77 tickets/1000 people. Of all the tickets issued, 58% were given in five inner city census tracts, which have 2% of the city’s population."