Example sentences of "[noun] [prep] [noun] over this period " in BNC.
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1 | Its basis is systematic monitoring of the full complement of courses over this period , and its direct evaluation of some twenty-five of them . |
2 | In order to engage in comparisons over time we were faced with a dilemma stemming from the change in the range of newspapers over this period . |
3 | Social and economic relations were modified in a whole range of ways over this period , some of them to the advantage of the working class . |
4 | Accordingly , the major contribution of economics to policy over this period has been in providing some short-term corrections to economic activity whilst being able to do little to alter the long-term trend . |
5 | While classical factors were often present , and for brief periods predominated , Keynesian factors were the proximate forces accounting for the rise in unemployment over this period . |
6 | The five firm concentration ratio has varied around an average of 41% over this period , rising to a peak of 53% in 1978 before falling to 34% in 1980 , rising to 47% in 1983 before declining to 30% in 1990 . |
7 | The changes in the composition of income over this period are shown in the Table . |
8 | Incidents of this kind were not the only contribution to tension over this period . |