As a small point of clarity, the second chart shows what interest rates are, not that those are the rates being paid by all with balances. As discussed above, I have several credit cards and all of them have an interest rate near or above 20% nowadays. But I don't pay interest on any of them because I pay them off everything month. Depending on when my balance is pulled, it could $0 or it could be $10,000+ which skews the first chart but not the second.
TLDR: Just because the companies have high rates doesn't mean everyone is paying them. You can't just combine the 2 charts.