The figure illustrated the different 
percentage
 of US and China Fix the agreement mistake
percentages
birth
 Use synonyms
Use synonyms
rate
 in almost a century.
Fix the agreement mistake
rates
Overall
, Linking Words
although
 Linking Words
US
 Correct article usage
the US
birth
 Use synonyms
rate
 was higher than the Use synonyms
birth
 Use synonyms
rate
 of China, these 2 different countries share Use synonyms
the
 similar fluctuation trend.
From the figure, Correct article usage
a
US
 Correct article usage
the US
birth
 Use synonyms
rate
 Use synonyms
is 
fluctuated Unnecessary verb
apply
in 
around 13 % from 1920 to 1940 followed by hitting Change preposition
apply
the
 low point Correct article usage
a
at
Change preposition
of
 5 
% Correct article usage
a 5
birth
 Use synonyms
rate
 in 1945, Use synonyms
then
 it rose sharply to reach Linking Words
it
 peak at 20 % in 1950. After 1950, the Change the pronoun
its
birth
 Use synonyms
rate
 Use synonyms
of
 Change preposition
in
US
 Correct article usage
the US
decreasing
 slowly until it reached 7% in 2000.
Wrong verb form
decreased
On the other hand
, Linking Words
China
 Change noun form
China's
birth
 Use synonyms
rate
 Use synonyms
show
 some fluctuation Wrong verb form
showed
around
 11% from 1920 to 1930 and Change preposition
of around
then
 Linking Words
rise
 to 15% in 1935. After Wrong verb form
rose
experience
 fluctuation, it Wrong verb form
experiencing
droped
 dramatically to 5% in 1940 until 1945, Correct your spelling
dropped
then
 rocketed to reach Linking Words
it
 peak at 20% in 1950. Change the pronoun
its
Finally
, the trend declined gradually until 2000 at about 2% of Linking Words
Use synonyms
birth
 Correct article usage
the birth
rate
.Use synonyms