The graph below compares changes in the both rates of China and the US between 1920 and 2000.

The graph provided reveals some striking similarities between the Chinese and US birth rates during the period from 1920 to 2000.

Increasing from approximately 10 percent in 1920 to 15 percent in 1935, China’s birth rate then plunged to a low of just 5 percent in the 1940s. This was followed by a period of exponential growth, with fertility in the country reaching a peak of 20 percent in 1950. The latter half of the century, however, brought a sustained decline in this figure.

The US birth rate, meanwhile, fluctuated at somewhere between 11 and 13 percent prior to 1940, before dropping sharply to less than 5 percent in 1945. The following 5 years saw a rapid climb in this rate, to somewhere in the vicinity of 15 percent in 1950, followed by a steady fall.

In conclusion, it is evident that both nations saw considerable fluctuations in fertility, with lows during the 1940s and highs during the 1950s.

Votes
Average: 7.3 (1 vote)

Grammar and spelling errors:
Line 5, column 152, Rule ID: ENGLISH_WORD_REPEAT_BEGINNING_RULE
Message: Three successive sentences begin with the same word. Reword the sentence or use a thesaurus to find a synonym.
...sharply to less than 5 percent in 1945. The following 5 years saw a rapid climb in ...
^^^

Transition Words or Phrases used:
however, so, then, while, in conclusion

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

Performance on Part of Speech:
To be verbs : 2.0 7.0 29% => More to be verbs wanted.
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 3.0 6.8 44% => More conjunction wanted.
Relative clauses : 1.0 3.15609756098 32% => OK
Pronoun: 7.0 5.60731707317 125% => Less pronouns wanted
Preposition: 36.0 33.7804878049 107% => OK
Nominalization: 0.0 3.97073170732 0% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 772.0 965.302439024 80% => OK
No of words: 159.0 196.424390244 81% => More content wanted.
Chars per words: 4.85534591195 4.92477711251 99% => OK
Fourth root words length: 3.55098862472 3.73543355544 95% => OK
Word Length SD: 2.79080919388 2.65546596893 105% => OK
Unique words: 95.0 106.607317073 89% => More unique words wanted.
Unique words percentage: 0.59748427673 0.547539520022 109% => OK
syllable_count: 212.4 283.868780488 75% => OK
avg_syllables_per_word: 1.3 1.45097560976 90% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 1.53170731707 131% => OK
Article: 4.0 4.33902439024 92% => OK
Subordination: 1.0 1.07073170732 93% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 5.0 3.36585365854 149% => 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: 22.0 22.4926829268 98% => OK
Sentence length SD: 21.3407725125 43.030603864 50% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 110.285714286 112.824112599 98% => OK
Words per sentence: 22.7142857143 22.9334400587 99% => OK
Discourse Markers: 5.57142857143 5.23603664747 106% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 1.0 1.69756097561 59% => 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: 0.190566052737 0.215688989381 88% => OK
Sentence topic coherence: 0.0833980979876 0.103423049105 81% => OK
Sentence topic coherence SD: 0.0959372639233 0.0843802449381 114% => OK
Paragraph topic coherence: 0.125185387752 0.15604864568 80% => OK
Paragraph topic coherence SD: 0.101322853451 0.0819641961636 124% => OK

Essay readability:
automated_readability_index: 12.8 13.2329268293 97% => OK
flesch_reading_ease: 74.53 61.2550243902 122% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 8.3 10.3012195122 81% => OK
coleman_liau_index: 11.2 11.4140731707 98% => OK
dale_chall_readability_score: 8.2 8.06136585366 102% => OK
difficult_words: 35.0 40.7170731707 86% => OK
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 10.8 10.9970731707 98% => OK
text_standard: 11.0 11.0658536585 99% => 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.