The table below shows daily oil production in 4 countries from 2000 to 2004

Grammar and spelling errors:
Line 2, column 21, Rule ID: EN_A_VS_AN
Message: Use 'an' instead of 'a' if the following word starts with a vowel sound, e.g. 'an article', 'an hour'
Suggestion: an
...iod of four years. Overall, there was a increase in the amount of daily oil pro...
^

Transition Words or Phrases used:
but, first, if, similarly, so, whereas, in addition

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

Performance on Part of Speech:
To be verbs : 7.0 7.0 100% => OK
Auxiliary verbs: 1.0 1.00243902439 100% => OK
Conjunction : 5.0 6.8 74% => OK
Relative clauses : 2.0 3.15609756098 63% => OK
Pronoun: 2.0 5.60731707317 36% => OK
Preposition: 50.0 33.7804878049 148% => OK
Nominalization: 5.0 3.97073170732 126% => OK

Performance on vocabulary words:
No of characters: 1088.0 965.302439024 113% => OK
No of words: 228.0 196.424390244 116% => OK
Chars per words: 4.77192982456 4.92477711251 97% => OK
Fourth root words length: 3.88582923847 3.73543355544 104% => OK
Word Length SD: 2.61256287284 2.65546596893 98% => OK
Unique words: 113.0 106.607317073 106% => OK
Unique words percentage: 0.495614035088 0.547539520022 91% => More unique words wanted or less content wanted.
syllable_count: 310.5 283.868780488 109% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 1.53170731707 0% => OK
Article: 5.0 4.33902439024 115% => OK
Subordination: 2.0 1.07073170732 187% => OK
Conjunction: 2.0 0.482926829268 414% => Less conjunction wanted as sentence beginning.
Preposition: 6.0 3.36585365854 178% => 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: 32.0 22.4926829268 142% => The Avg. Sentence Length is relatively long.
Sentence length SD: 33.7995290391 43.030603864 79% => OK
Chars per sentence: 155.428571429 112.824112599 138% => OK
Words per sentence: 32.5714285714 22.9334400587 142% => OK
Discourse Markers: 7.28571428571 5.23603664747 139% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 1.0 1.69756097561 59% => OK
Sentences with positive sentiment : 3.0 3.70975609756 81% => OK
Sentences with negative sentiment : 0.0 1.13902439024 0% => More negative sentences wanted.
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: 0.222690563187 0.215688989381 103% => OK
Sentence topic coherence: 0.123814075405 0.103423049105 120% => OK
Sentence topic coherence SD: 0.0443911209766 0.0843802449381 53% => OK
Paragraph topic coherence: 0.152853143304 0.15604864568 98% => OK
Paragraph topic coherence SD: 0.0238029128987 0.0819641961636 29% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.

Essay readability:
automated_readability_index: 17.3 13.2329268293 131% => OK
flesch_reading_ease: 55.92 61.2550243902 91% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 13.4 10.3012195122 130% => OK
coleman_liau_index: 10.98 11.4140731707 96% => OK
dale_chall_readability_score: 8.27 8.06136585366 103% => OK
difficult_words: 44.0 40.7170731707 108% => OK
linsear_write_formula: 13.5 11.4329268293 118% => OK
gunning_fog: 14.8 10.9970731707 135% => OK
text_standard: 14.0 11.0658536585 127% => 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.