21.   Although emissions of fumes from domestic and industrial sources of declined over the past decade, those from motor vehicles have increased considerably, the report states.

22.   The birth rate in many African countries has also fallen over the past decade.

23.   The shrimp industry, however, contends that the shortages in the supply of larvae during the past decade are due to fluctuations in population.

24.   Nevertheless many lessons have been learned over the past decade.

25.   Employee trusts have increased in popularity over the past decade or so as a method of providing incentives for employees.

26.   While the electoral strength of Communism was still infinitesimal in contrast to that of the Labour Party, it was greater than for the past decade.

27.   Over the past decade, the Victorian dockland has been transformed into a multi-million pound leisure and shopping complex.

28.   NORPLANT gives cover against getting pregnant for up to five years and has been used for the past decade abroad.

29.   He said the problem had escalated over the past decade.

30.   The way in which we work, whether it be in an office or on the factory floor, has undergone a major transformation in the past decade.