51.   As a result, the ECB changed the method of calculating the data to strip out such distortions.

52.   But Japanese firms had to change their methods of conducting business to achieve this goal.

53.   But the calculations are clouded by the fact that Gallup has changed its method of testing opinion since its last Telegraph poll.

54.   Officials say they were forced to change their methods as drug traffickers shifted their entry points from Florida and the southeastern United States to the Southwest.

55.   Previously gold was smuggled in small fishing boats and Arab dhows, but increased coastal vigilance has led smugglers to change their methods, he said.