I'm not even sure these numbers are comparable. Who is gathering and reporting the statistics? Are they all using the exact same criteria and methodology? Unemployment is one of the most politically-charged statistics you can find. I'd be shocked if all these countries reported it accurately.
They are not comparable, nor is the current rate in the US with historic data since the definitions have changed multiple times. It is very much the same with comparing infant mortality since several EU countries count it very differently than the US.
