The risk was reduced by 70% per year since the last use of the drug.
Tree cover has been reduced by more than 50 percent since the 1940s.
Her income is a good deal reduced since the war.
The number has been reduced to 50 from about 200 since January.
The committee has reduced interest rates three times since June.
How much the capital has been reduced since that time the minister best knows.
The company has reduced its Connecticut work force from 17,000 to 12,000 since 1993, and plans to cut another 6,000 over the next four years.
The number of employees has been greatly reduced since 1990s from over 5,000 to 2,500.
The city's payroll has been reduced by 10,000 since 1991.
Baltimore, for example, has reduced its work force by 1,037 since July 1989.