Formula to rank persons by state in each country (2 groups/criteria)

Hello,

I would like to rank a list of persons (represented by their ID) at State/Province level based on their worldrank value (the lower the value the higher the rank).
For example Persons in the united states ranked by each state based on their worldrank; it is a sub ranking by state/province. I could rank based on the state/province name only and forget about the country but the issue is that in some countries there are states/provinces with the same name. For example both Argentina and Colombia have a province called Cordoba. So if I apply the usual ranking formula based on one criteria/group the result is that it considers cordoba in the same state ranking and does not create one state/province ranking for the two different countries.
What formula should I use to create different state/province rankings based first on the country and then the state/province (not just one group/criteria but two).

I attach the worksheet hoping it will help understand better the issue.

Thanks for any help!

world33