What is considered a "third rail" issue varies by country.

The price differential varies by country but is typically 5 to 10 times as much.

The ability to train such workers varies by country, they said.

The cost of the cards varies by country and currency.

Accountability regulations for child support money vary by country and state.

The Christmas season is celebrated in different ways around the world, varying by country and region.

The medical problems that may come up vary by country.

The particular film genre that played on the specific day (and time) varied by country.

The definition of a small farm has varied over time and by country.

These are also common girl's given names, whose popularity varies by time and country.