How many times?
Just once, Achmed. All translations have been taken directly from the oldest texts. It’s not like a copy of a copy of a copy- no, each translation is done from the source.
In fact, the New American Standard has the highest word for word precision.
For a balance of accuracy and readability, choose the ESV.
Each set of scholars who work on a translation might differ slightly, but they are all working from the ancient.