The given pie charts compare statistics for the yearly expenses of 5 different categories by a specific school in the United Kingdom between 1981 and 2001

The

two

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pie charts

shown

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apply

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compare the expenses per year for five potentially various groups, namely, insurance, teachers'

salaries

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,

furniture

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and

equipment

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, resources, and other workers'

salaries

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, allocated to a particular school in the United Kingdom in 1981 and 1991. If we take the five attributes in combination,

it is clear that

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the highest consumption rates occur on teachers'

salaries

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, followed closely by other workers'

salaries

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while

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resources,

furniture

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and

equipment

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,

as well as

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insurance in which the lower percentages are revealed. The lowest percentages are for insurance where the figures for the

two

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categories hardly vary, with both 1981 at 2% and 1991 at 3% of their respective totals and

furniture

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and

equipment

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at 2 percentage points more in 1991. The other workers'

salaries

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data

also

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show broad similarities though the percentages for the

two

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are higher than resources, with both 1981 and 1991 at 35% of the totals and consisting of a

furniture

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and

equipment

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share of 15% for 1981.

Similarly

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, teachers'

salaries

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show similar distribution patterns since there is never more than a ten percentage point difference between the

two

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over the years

are

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apply

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studied.