Example sentences of "[verb] been estimate that [det] " in BNC.

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1 Despite the enterprise and labour put into its acquisition it has been estimated that all the gold won between the mid-fifteenth and mid-twentieth centuries could be contained in a cube of fifteen yards .
2 Although definitive information is lacking , it has been estimated that such a right currently applies to just 20% of the 1.5 million acres of common land in England and Wales .
3 It has been estimated that many thousands of kung fu styles exist in Asia today .
4 It has been estimated that each edition after 1800 probably ran to over 30,000 copies .
5 Manufacturing accounts for a relatively small proportion of employment in rural areas , and in the more remote regions it has been estimated that this can be as low as 10–20 per cent ( Gilg 1976 ) .
6 In the case of the Earth it has been estimated that this could lead to an underabundance of xenon in the atmosphere of a factor of 10 or more .
7 It has been estimated that this particular treatment has saved about 10 million lives .
8 It has been estimated that this could reduce consumption by 20 to 30 per cent .
9 Appearance money or guarantees previously were illegal — though not unknown — and under the new system it has been estimated that some top players ( Lendl and Boris Becker make around £1.5 million a year ) could increase their annual earnings by 40 per cent .
10 It has been estimated that some 85 per cent of these are of Augustan date .
11 NO CRIME PLEASE , WE 'RE IOFCs It has been estimated that half the world 's financial transactions by value involve an offshore centre directly or indirectly .
12 It has been estimated that these subsistence farmers are globally responsible for half of all rainforest destruction , as they march deeper and deeper into virgin forest .
13 It has been estimated that these various small-scale erosional processes require tens of Ma to overturn a few millimetres of dust .
14 It has been estimated that these three cost categories can impact about 10 to 40 per cent of the well 's dryhole cost .
15 It has been estimated that more than one-third of the land area of the United Kingdom is covered by these additional restraints .
16 It 's been estimated that this might be of the order of one cubic kilometre per year .
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