In the mid-1990s to 2009, the levels rose to about 500,000 per year with considerable variation.

But prices show a considerable variation over the period of a few months.

There does, however, seem to be a more considerable variation between families.

There are considerable variations between countries in their approach to sexual violence.

As might be expected for such a large family, there is considerable variation among the species.

There was also considerable variation in the structure of teachers' planning.

Even within some states and metropolitan areas, there is considerable variation.

As a result, there is typically considerable variation between standards in one community and another.

There is considerable variation in the family with regard to bill shape.

There was considerable variation in the estimated effects among programs, however (see figure below).