Example sentences of "which account for about [adj] " in BNC.

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1 Emissions from power stations , which account for about 80 per cent of the total , hardly fell at all .
2 The Audit Commission focused on the 20 most common operations , which account for about 30 per cent .
3 Most have been found in graves especially at Faversham which accounts for about two-thirds of all such beads found in England .
4 Low-level ozone , so called to distinguish it from the naturally forming ozone in the stratosphere which accounts for about 90 per cent of the ozone in the atmosphere , is created by the action of sunlight on oxides of nitrogen and reactive hydrocarbons ( volatile organic compounds ) emitted by vehicles and industry .
5 Neither the very big and important financial futures business , which accounts for about 155 of the AFBD 's 400 members , nor the equally important oil market , is represented by the nine elected council members .
6 Africa 's main energy consumer is South Africa which accounts for about one-quarter of oil consumption .
7 The FDA was quoted as saying that the asthma drug Intal , which accounts for about half of Fisons ' pharmaceutical sales , was still on sale despite ‘ violations ’ only because of its medical necessity .
8 The average duration of use of heroin by clients of the three agencies is about one to three years , a habit length which accounts for about half to two-thirds of the users known to each agency .
9 Index linked National Savings Certificates were popular up until the early 1980's , but with a fall in inflation they have tended to be eclipsed by the popularity of fixed interest certificates which accounted for about 16 per cent of total assets in 1990 .
10 Instead they pointed to the growth in development funds contributed from abroad , which accounted for about 80 per cent of the development budget at the beginning of 1990 .
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