My total loan amount was ~30k for most my loans over 5 years. The initial loans were at 3.25% and whatever the perkins loan rate was, the later loans were at 6.8%, which was super ridiculous and I don’t think they stopped that rate until later. I preferentially paid off the 6.8% loans, the other loans are practically free money (interest rates below 2%) at this point so I pay the minimum.