The three pie charts below show the changes in annual spending by a particular UK school in 1981,1991 and 2001.

The pie charts compare the alteration in expenditure of a certain school in the UK in three particular

years

, 1981,1991, and 2001. It can be seen that the main quantity of expenses specialized to teachers during these three

years

. Whilst the insurance had a minor spending. In 1981, the school spent significantly on teachers' salaries at 40%, and in 1991

this

figure rose to 50%

however

it dropped to 45% ten

years

later.

This

pattern was repeated for resources e.g. books which were 15%, 20%, and 9% respectively in 1981,1991, and 2001. Furniture and equipment in 1891 had 15% of expenditure and

then

it declined by a tenth dramatically in 1991 and at

last

it reached just a little under a quarter noticeably. Over these three

years

, the spending on insurance seems to be less important than other factors as it went up gradually from 2% to a little under a tenth.

However

, the resources books budgeting dipped strikingly to almost 9% whilst its expenditure was approximately 3 out of 10 between 1981 and 2001.