Example sentences of "be estimated [that] [adj] [noun pl] " in BNC.

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1 A major discovery was made at Jabirn in the Timor Sea in 1983 but it has been estimated that similar discoveries on a yearly basis would be necessary if increasing oil imports are not to be required in the future to maintain present levels of consumption .
2 It has been estimated that retrospective appeals from Scottish landowners over previously designated SSSIs — there are currently 1300 — could cost SNH £1.5m a year , 7.5% of their budget .
3 In the same year in Kenya it has been estimated that African citizens and government institutions owned only about 5 per cent of corporate assets .
4 RECYCLED PAPER It is estimated that certain plastics will take over 400 years to disintegrate , so that is why we are introducing more recyclable plastic , which can be melted down and re-used .
5 In Western Europe it is estimated that new cars will become , on average , 2% more fuel efficient per year to 1990 , Europe 's motor manufacturers having given the commitment to governments to improve the fuel efficiency of their 1985 models by 10% over the 1978 efficiency level .
6 This is particularly apparent in Central America , where it is estimated that seasonal migrants make up 70 per cent of the labour force employed in agriculture .
7 most school librarians have experience of pupils losing library tickets , it was estimated that individual cards would need replacing regularly .
8 In 1989 , it was estimated that sharp instruments were used in one in three aggravated burglaries , one in five robberies , one in 17 offences of violence against the person and one in 100 sexual offences .
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