11.   Transpiration in ozone-damaged trees was irregular and delayed, and transpiration rates did not vary with external conditions as they do in healthy trees.

12.   The rate varies according to the experience of the person dealing with the work.

13.   And also remember that currency rates vary based on where you are changing the money.

14.   And income tax rates vary even more widely.

15.   And so, the per-minute rates vary greatly from country to country and are often artificially high.

16.   As in most gambling cities, room rates vary drastically depending on demand and time of year or week.

17.   Audit rates varied substantially by region, the study found.

18.   Because of special taxing jurisdictions, rates can vary even within the same ZIP code.

19.   Because of special taxing jurisdictions, tax rates can vary even within the same ZIP code.

20.   Both state officials and industry officials say that rates will vary by thousands of dollars.