Example sentences of "[num] [noun pl] over a [adj] period " in BNC.

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1 Typically , individual therapy involves 12–20 sessions of 45–60 minutes over a three-month period .
2 Prosecutor Nigel Godsmark said he preyed on 270 women over a three-year period .
3 The District Court jury deliberated for almost 25 hours over a six-day period before arriving at its unanimous decision on charges involving conspiracy , lying to Congress and obstructing congressional inquiries .
4 Instead he became an alcoholic ( a ‘ half-alcoholic ’ he preferred to call it ) who required to dry-out in hospital about 50 times over a 25-year period .
5 The stimulating article Some library costs and options by Brown ( an economist ) concludes ‘ it seems to be worth acquiring and providing storage for , books likely to be wanted more often than , once in about 1.7 years over a long period ’ .
6 Thus it has been held that there was a course of dealing where the parties contracted three or four times per month for three years ( Kendall v Lillico ) and where there had been 81 transactions over a period of six years ( SIAT di del Ferro v Tradax Overseas SA [ 1978 ] 2 Lloyd 's Rep 470 ) , but not where there had been only three or four contracts over a five-year period ( Hollier v Rambler Motors ( AMC ) Ltd [ 1972 ] 2 QB 71 ; in addition the alleged course of dealing was not consistent ) .
7 The Brecon Beacons National Park in Wales lost 8,195 hectares of moorland ( to agriculture and forestry ) between 1885 and 1975 , and the northern half of the Snowdonia National Park lost 5,201 hectares over a similar period , though the majority of it was to forestry .
8 ‘ The job required 51,000 man-hours over a 28-week period , ’ he said .
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