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There are a number of really great links with data for various economic indicators available on the St. Louis Fed site, at https://fred.stlouisfed.org/. The data is downloadable from the Fed site, so that we can use some of it as example data for exercising the economic indicators ontology.
We discussed the latest updated economic indicators ontology - we'll need to raise a new issue to add the various US U-1 through U-6, or at least U-3 through U-6 subclasses of unemployment rate, and then test the results with some examples. But we can now represent the variations on the universe(s), so that the rates can depend on those definitions.