The bar graph gives 
previous
 ratio and Change the article
the previous
also
 depicts the future percentage of people living in six different countries namely, Linking Words
asia
, Change the capitalization
Asia
africa
, Europe, Change the capitalization
Africa
latin
 Change the capitalization
Latin
America
 and Use synonyms
Use synonyms
oceania
 in three different years (1950, 2007, 2050).
Change the capitalization
Oceania
Overall
, the highest percentage of Linking Words
Use synonyms
population
 belongs to Add an article
the population
north
 Change the capitalization
North
America
 (64%, 79%, 90%) Use synonyms
whereas
 Africa has the lowest percentage of Linking Words
Use synonyms
population
 in 1950 and in 2007 Add an article
the population
however
, the rate will increase to 62% in 2050  but it will still be less from the other six countries.
It is clear from the data shown in the graph, the Linking Words
population
 of Europe and Use synonyms
latin
 Change the capitalization
Latin
America
 was above 40% in 1950 and raised to Use synonyms
70’s
 in 2007.In 2050,Fix apostrophe usage
’70s
however
,it is expected that the Linking Words
population
 of both Use synonyms
the 
nations will exceed 83% .The Correct article usage
apply
population
 of Use synonyms
north
 Change the capitalization
North
America
 and Use synonyms
Use synonyms
oceania
 was below 65% in 1950.the rate raised to Change the capitalization
Oceania
to 
79% in Remove the redundancy
apply
north
 Change the capitalization
North
America
 and 76% in Use synonyms
Use synonyms
oceania
 in the year 2007. The expected rate of Change the capitalization
Oceania
Use synonyms
oceania  
is less than Change the capitalization
Oceania 
north
 Change the capitalization
North
America
 in 2050 (76% when compared Use synonyms
to90
%).
To illustrate, the graph shows an increase in Correct your spelling
to 90
number
 of Change the article
a number
the number
Use synonyms
population
 showing that Add an article
the population
Use synonyms
population
 has increased over the years and it  will keep on increasing till 2050.Correct article usage
the population