Rainfall is highly erratic with an average of about 130 mm.

But it is a highly erratic thing; it just keeps changing.

The military category is highly erratic, depending on when big Government contracts are signed.

Rainfall is highly erratic, and some years it doesn't rain at all.

State figures, the department cautions, however, are highly erratic because they are based on far smaller samples than the national data.

They once again cautioned against reading any significance into the normally sensitive Federal funds rate, which was highly erratic.

These monthly numbers are highly erratic, and it is likely that at least part of this drop will be reversed in future months.

Tobacco products, which are highly erratic for tax and other reasons, soared 22.6 percent.

The illusion that it does otherwise is heightened by its very fast and highly erratic flight, with many rapid changes of direction.

The number of people who were employed also fell (though economists always caution that unemployment figures are highly erratic).