"The city received nearly 12,000 complaints regarding illegal short-term rentals from 2017 to 2021." I think that 4000 complaints a year is not a lot in a city

"The city received nearly 12,000 complaints regarding illegal short-term rentals from 2017 to 2021." I think that 4000 complaints a year is not a lot in a city of 8.5 million. There could be that many complaints for anything.