If they were printed on stock certificates, how would you get to 0.01% short interest? You get to any other number by repeating that process.

Imagine a company with 1 share of stock floating. Abel buys that share and loans it to Baker (via Abel's broker). Baker borrows the share and sells it to Charlie. Charlie loans their share to Diane. Diane sells it to Earl. Earl loans their share to Fred. Fred sells it to Gary...