The graph below shows the proportion of the population aged 65 and over between 1940 and 2040 in three different countries

The line chart gives data about the percentage of Japanese, Swedish, and American people who are 65 and over reported every 20 years from 1940 to 2020 with an estimate for the next 20 years.
Overall, the proportion of the elder population in these three countries was never more than 30 percent. Specifically, the figure for Sweden and the USA increased steadily throughout the period. Meanwhile, the figure of Japan was always lower with a dramatic decrease but it is predicted to experience a great jump in the future.
In 1940, in Sweden and America, there was over 6% and 9% of the population was 65 or over. Then, the figures both rose to merely 14% and 15% respectively after 1980. About 35-40 years later, the elder population rate of Sweden continued surging to about 20% while it was down to 14% in the USA. In 2040, the figures are estimated to keep increasing to over 25% and 23% respectively.
By contrast, in Japan, there was 5% of the population was 65 or more in 1940. More than 40 years later, the figure dropped to only about 3%. Around 30 following years, the rate grew up to nearly 7%. Finally, it is forecasted to keep soaring and overtake the figure of Sweden and the USA with over 27% in 2040.

Votes
Average: 6.7 (1 vote)

Grammar and spelling errors:
Line 1, column 90, Rule ID: WHO_NOUN[1]
Message: A noun should not follow "who". Try changing to a verb or maybe to 'who is a are'.
Suggestion: who is a are
... Japanese, Swedish, and American people who are 65 and over reported every 20 years fro...
^^^^^^^
Line 4, column 311, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...eden and the USA with over 27% in 2040.
^^^

Transition Words or Phrases used:
but, finally, if, so, then, while

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

Performance on Part of Speech:
To be verbs : 11.0 7.0 157% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 12.0 6.8 176% => OK
Relative clauses : 1.0 3.15609756098 32% => OK
Pronoun: 4.0 5.60731707317 71% => OK
Preposition: 45.0 33.7804878049 133% => OK
Nominalization: 6.0 3.97073170732 151% => OK

Performance on vocabulary words:
No of characters: 1002.0 965.302439024 104% => OK
No of words: 220.0 196.424390244 112% => OK
Chars per words: 4.55454545455 4.92477711251 92% => OK
Fourth root words length: 3.85128510684 3.73543355544 103% => OK
Word Length SD: 2.50356770223 2.65546596893 94% => OK
Unique words: 123.0 106.607317073 115% => OK
Unique words percentage: 0.559090909091 0.547539520022 102% => OK
syllable_count: 306.9 283.868780488 108% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 1.53170731707 65% => OK
Article: 9.0 4.33902439024 207% => Less articles wanted as sentence beginning.
Subordination: 0.0 1.07073170732 0% => More adverbial clause wanted.
Conjunction: 1.0 0.482926829268 207% => Less conjunction wanted as sentence beginning.
Preposition: 7.0 3.36585365854 208% => Less preposition wanted as sentence beginnings.

Performance on sentences:
How many sentences: 12.0 8.94146341463 134% => OK
Sentence length: 18.0 22.4926829268 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 35.4067633213 43.030603864 82% => OK
Chars per sentence: 83.5 112.824112599 74% => OK
Words per sentence: 18.3333333333 22.9334400587 80% => OK
Discourse Markers: 2.75 5.23603664747 53% => More transition words/phrases wanted.
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 2.0 1.69756097561 118% => OK
Sentences with positive sentiment : 4.0 3.70975609756 108% => OK
Sentences with negative sentiment : 0.0 1.13902439024 0% => More negative sentences wanted.
Sentences with neutral sentiment: 8.0 4.09268292683 195% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.180983977038 0.215688989381 84% => OK
Sentence topic coherence: 0.071330697587 0.103423049105 69% => OK
Sentence topic coherence SD: 0.077451317282 0.0843802449381 92% => OK
Paragraph topic coherence: 0.11186244593 0.15604864568 72% => OK
Paragraph topic coherence SD: 0.0273239790665 0.0819641961636 33% => 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: 9.2 13.2329268293 70% => Automated_readability_index is low.
flesch_reading_ease: 70.13 61.2550243902 114% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 7.9 10.3012195122 77% => OK
coleman_liau_index: 9.11 11.4140731707 80% => OK
dale_chall_readability_score: 7.97 8.06136585366 99% => OK
difficult_words: 48.0 40.7170731707 118% => OK
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 9.2 10.9970731707 84% => OK
text_standard: 8.0 11.0658536585 72% => 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.