Even so, the number of people moving through particular age groups has varied substantially over the past two or three decades.

The methods that are used vary substantially from one country to another.

At any hour of a given day, weather conditions can vary substantially across the state.

They have varied substantially around that level but show no clear trend.

The seven known accounts of what happened there on October 9, 1850 vary substantially.

It is smaller, when the data sets are expected to vary substantially from one another.

I believe that the structures of local and regional government vary substantially between the different member states.

Levels of prey drive often vary substantially in different dogs.

The median cloud cover is 93% and does not vary substantially over the course of the year.

The degree to which countries enforce their competition policy varies substantially.