the three pie charts below show the changes in annual spending by a particular UK school in 1981 1991 and 2001 Summarize the information by selecting and reporting the main features and make comparisons where relevant

The total school spending in 3 different years of 1981, 1991, and 2001 in a particular UK school are shown in 3 pie charts.
The annual spending has been categorized to 5 main group in each school year including Insurance, Teachers salaries, furnitures & equipment, resources& books, and other worker's salaries. In each school year, teacher's salaries was the most costly spending with almost half of the annual expenditure. On the contrary, Insurance was the lowest expense in each school year with small rise from 2 percent in 1981 to 8 percent in 2001.
Among the 2 decades furnitures and equipment cost decreased from 15 percent in 1981 to 5 percent in 1991 and rose significantly in the following decade in 2001 with 23 percent of the total expenditure. In contrast, resources and books included 15 percent of the annual spending in 1981 and rose to 20 percent in 1991 with significant decline to 9 percent of the total cost in the following decade in 2001.
Other worker's salaries part decreased continuously during the years from 28 percent in 1981 to 15 percent in 2001.

Votes
Average: 6.7 (1 vote)

Transition Words or Phrases used:
if, so, in contrast, on the contrary

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 4.0 7.0 57% => More to be verbs wanted.
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 6.0 6.8 88% => OK
Relative clauses : 0.0 3.15609756098 0% => OK
Pronoun: 0.0 5.60731707317 0% => OK
Preposition: 40.0 33.7804878049 118% => OK
Nominalization: 4.0 3.97073170732 101% => OK

Performance on vocabulary words:
No of characters: 898.0 965.302439024 93% => OK
No of words: 184.0 196.424390244 94% => More content wanted.
Chars per words: 4.88043478261 4.92477711251 99% => OK
Fourth root words length: 3.68302321012 3.73543355544 99% => OK
Word Length SD: 2.7728201844 2.65546596893 104% => OK
Unique words: 88.0 106.607317073 83% => More unique words wanted.
Unique words percentage: 0.478260869565 0.547539520022 87% => More unique words wanted or less content wanted.
syllable_count: 244.8 283.868780488 86% => OK
avg_syllables_per_word: 1.3 1.45097560976 90% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 1.53170731707 0% => OK
Article: 2.0 4.33902439024 46% => OK
Subordination: 0.0 1.07073170732 0% => More adverbial clause wanted.
Conjunction: 2.0 0.482926829268 414% => Less conjunction wanted as sentence beginning.
Preposition: 4.0 3.36585365854 119% => OK

Performance on sentences:
How many sentences: 7.0 8.94146341463 78% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 26.0 22.4926829268 116% => OK
Sentence length SD: 38.9243116935 43.030603864 90% => OK
Chars per sentence: 128.285714286 112.824112599 114% => OK
Words per sentence: 26.2857142857 22.9334400587 115% => OK
Discourse Markers: 5.14285714286 5.23603664747 98% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 1.0 3.70975609756 27% => More positive sentences wanted.
Sentences with negative sentiment : 2.0 1.13902439024 176% => OK
Sentences with neutral sentiment: 4.0 4.09268292683 98% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.183113874009 0.215688989381 85% => OK
Sentence topic coherence: 0.114178312236 0.103423049105 110% => OK
Sentence topic coherence SD: 0.0831665950073 0.0843802449381 99% => OK
Paragraph topic coherence: 0.146541051963 0.15604864568 94% => OK
Paragraph topic coherence SD: 0.0999046481013 0.0819641961636 122% => OK

Essay readability:
automated_readability_index: 14.7 13.2329268293 111% => OK
flesch_reading_ease: 70.47 61.2550243902 115% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 9.9 10.3012195122 96% => OK
coleman_liau_index: 11.32 11.4140731707 99% => OK
dale_chall_readability_score: 8.02 8.06136585366 99% => OK
difficult_words: 36.0 40.7170731707 88% => OK
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 12.4 10.9970731707 113% => OK
text_standard: 11.0 11.0658536585 99% => OK
What are above readability scores?

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Rates: 67.4157303371 out of 100
Scores by essay e-grader: 6.0 Out of 9
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.