Please do report all criminal incidents to the police (big or small) via calling 101 or online (see information below).
More information on how to report a crime can be found here https://www.police.uk/pu/contact-the-police/what-and-how-to-report/what-report/
The police can only act on reported incidents, and these crimes can provide a pattern or build a bigger picture on certain types of crime taking place in an area or within a specific time frame.