Any PSA above 5 would raise suspicion of malignant disease, but may also be due to other non malignant disease processes.
What is more important is that of the significance of a rising PSA figure and that would trigger urgent investigations. ......rectal examination, MRI scan and then biposy.
If the figure for PSA was not rising and was below 5 and urinary symptoms were minimal, then a period of wait and see would be justifiable.
Your readings would not give rise to concern unless they were starting to rise.