What should the compression readings be?

[Fred K-OR]

Tried to search this site but did not find this information. I have a std engine with no high compression head, etc. So the question I have is what should the compression readings be on this kind of engine? I measured #1 64 psi, #2 59.5 psi, #3 59.5 psi, # 4 64.5 psi. Are these readings in the about what they should be?

Thanks for the info.