The table below shows information and predictions regarding the change in percentage of the population aged 65 and above in three countries

The given line graph illustrates how the elder population rate in Japan, Sweden and America changed over the sixty-year period starting from 1940 with a forecast to 2040.
Overall, the entire percentage of the elder population in those 3 countries merely surged over the whole period with a fluctuation of the Japanese elder population.
Firstly, from 1940 to 1980, the Swedish and American elder population proportions were almost the same, as they both rose stably from 2% and 9% to 14% and 15% respectively. After that, from 1980 to 2020, the elder population rate of the USA maintained stability and then slightly increased to 16% while it fluctuated from 14% to 18% in Sweden. Subsequently, according to the prediction, in 2040, the elder residents in the USA and Sweden will continue leaping to 23% and 25% in sequence.
By contrast, from 1940 to 2020, the elder population rates in Japan were always kept at a lower level compared to the two others. To be specific, the rate was 5% at the beginning point, then it decreased to 3% in 1960 and experienced a period of stability until raised to 10% in 2020. Surprisingly, in 2040, the proportion is presumed to rocket to over 27% - the all-time high percentage between the three countries.

Votes
Average: 7.3 (1 vote)

Grammar and spelling errors:
Line 5, column 418, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...percentage between the three countries.
^^^^^^^^^^^^

Transition Words or Phrases used:
first, firstly, if, then, while

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

Performance on Part of Speech:
To be verbs : 5.0 7.0 71% => OK
Auxiliary verbs: 1.0 1.00243902439 100% => OK
Conjunction : 8.0 6.8 118% => OK
Relative clauses : 1.0 3.15609756098 32% => OK
Pronoun: 5.0 5.60731707317 89% => OK
Preposition: 46.0 33.7804878049 136% => OK
Nominalization: 10.0 3.97073170732 252% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 1044.0 965.302439024 108% => OK
No of words: 212.0 196.424390244 108% => OK
Chars per words: 4.92452830189 4.92477711251 100% => OK
Fourth root words length: 3.81578560438 3.73543355544 102% => OK
Word Length SD: 2.81392644157 2.65546596893 106% => OK
Unique words: 122.0 106.607317073 114% => OK
Unique words percentage: 0.575471698113 0.547539520022 105% => OK
syllable_count: 304.2 283.868780488 107% => 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: 8.0 4.33902439024 184% => OK
Subordination: 2.0 1.07073170732 187% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 9.0 3.36585365854 267% => Less preposition wanted as sentence beginnings.

Performance on sentences:
How many sentences: 8.0 8.94146341463 89% => OK
Sentence length: 26.0 22.4926829268 116% => OK
Sentence length SD: 16.6240601238 43.030603864 39% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 130.5 112.824112599 116% => OK
Words per sentence: 26.5 22.9334400587 116% => OK
Discourse Markers: 3.875 5.23603664747 74% => 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 : 1.0 1.13902439024 88% => 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: 0.0875132227669 0.215688989381 41% => OK
Sentence topic coherence: 0.0417798143088 0.103423049105 40% => OK
Sentence topic coherence SD: 0.0339691103052 0.0843802449381 40% => Sentences are similar to each other.
Paragraph topic coherence: 0.0634052461198 0.15604864568 41% => OK
Paragraph topic coherence SD: 0.0256441410681 0.0819641961636 31% => 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: 15.0 13.2329268293 113% => OK
flesch_reading_ease: 62.01 61.2550243902 101% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 11.1 10.3012195122 108% => OK
coleman_liau_index: 11.55 11.4140731707 101% => OK
dale_chall_readability_score: 8.87 8.06136585366 110% => OK
difficult_words: 53.0 40.7170731707 130% => OK
linsear_write_formula: 15.0 11.4329268293 131% => OK
gunning_fog: 12.4 10.9970731707 113% => OK
text_standard: 9.0 11.0658536585 81% => OK
What are above readability scores?

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Rates: 73.0337078652 out of 100
Scores by essay e-grader: 6.5 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.