Drivers by nationality

[Bleu]

If every country would have only one driver in F1, what kind of list it would be.
Currently there are drivers from 11 countries in F1. 7 countries have only one (test drivers not included):

Columbia (Montoya)
Finland (Räikkönen)
Spain (Alonso)
Canada (Villeneuve)
France (Panis)
Australia (Webber)
Netherlands (Verstappen)

Then, I rate these four as the best of the country:

Germany (M.Schumacher)
Brazil (Barrichello)
Great Britain (Coulthard)
Italy (Fisichella)

We have 9 places left. I think the following should have a chance for them:

Austria (Wurz)
Japan (Sato)
Sweden (Wirdheim)
New Zealand (Dixon)
Mexico (Jourdain Jr.)
South Africa (Scheckter)
Czech Republic (Enge, despite of failed drug test)
Portugal (Monteiro)
United States (Hornish Jr.)

Following countries are missing:
Argentina (any better than Fontana or Mazzacane?)
Belgium (Goossens maybe)
Denmark (Magnussen or Kiesa)
Switzerland (Fässler drove F1 Safety Car in Canada 2001)
Malaysia (Yoong .)
India (Karthikeyan)