These were mostly overnight or other very short term loans. So $1 billion borrowed and "refinanced" for a month made it look like they borrowed $30 billion when they only borrowed $1 billion at a time.
When one refinances, the original loan is considered paid in full.
You're also paid in full when you pay in full.
Are you offering that none didn't refinance?
Current Fed discount window loans are $13 million. Million with an M. It's safe to say that the $16 trillion in loans has been repaid if the outstanding balance is down to $13 million.
If this is the case, then why the deficit of 16 trillion?