Settled status - what evidence?

Hello everyone,
I have a simple question: are printouts of electronic bank statements acceptable as evidence of continuous five year residence? Does it have to be statements from every month?
What else may I represent as evidence? Letters from NHS? Council bills?
It is so called Surinder Singh case.
Thank you!

Perhaps this might help:
https://www.gov.uk/guidance/eu-settleme ... -residence

Thanks a lot.
@alterhase58