My collection growth by country/issuers

With so many people out there posting statements such "I want to get to at least 1 coin from each modern country", wouldn't it be useful to have a chart similar to the "Collection History" one but showing the Countries and Issuers numbers instead? (ideally with a target line showing the Numista number of different countries/issuers)

Optionally there could be hide/show button for people who may not care.
Thanks!