All of the top 3 countries by currency > least valued currency unit > exchange rate to 1 US dollar are Muslim.

3 of the top 4 countries by currency > least valued currency unit > exchange rate to 1 US dollar are Hot countries.

All of the bottom 2 countries by currency > least valued currency unit > exchange rate to 1 US dollar are Potential Future EU.

All of the bottom 2 countries by currency > least valued currency unit > exchange rate to 1 US dollar are European.

3 of the top 6 countries by currency > least valued currency unit > exchange rate to 1 US dollar are East Asian and Pacific.

Iraq ranked last for currency > least valued currency unit > exchange rate to 1 US dollar amongst OPEC countries in 2011.

2 of the top 4 countries by currency > least valued currency unit > exchange rate to 1 US dollar are Former French colonies'.

5 of the top 12 countries by currency > least valued currency unit > exchange rate to 1 US dollar are Christian.

All of the bottom 2 countries by currency > least valued currency unit > exchange rate to 1 US dollar are NATO.