The provided bar chart illustrates information about the 
porportion
 of Correct your spelling
proportion
britains
 in five different Change the capitalization
Britains
age
 groups, who have donated money to a charity in two different Use synonyms
years
 namely 1990 and 2010. Use synonyms
Overall
 it can be noticed, in both Linking Words
years
 as the Use synonyms
age
 range grew Use synonyms
up 
older, the percentage of money Change preposition
apply
contributers
 decreased. Except for the two Correct your spelling
contributors
last
 groups of elderly people, Linking Words
which
 a slight increase can be seen.
Correct word choice
where
To begin
 with,a major decline of donors happened in 2010 among the youngest group, compared to that of in 1990. From more than 15% to nearly 5% . Linking Words
Similarly
, the percentage of benefactors Linking Words
with
 Change preposition
in
Use synonyms
age
 groups of 26-35 Correct article usage
the age
years
 old and 36-50, dropped Use synonyms
about
 more than 5% in 2010 than it was Change preposition
by
in
 20 Change preposition
to
years
 before. In detail, from above 30% and 40% to less than 25% and 35% respectively.
Use synonyms
On the other hand
, the Linking Words
porportion
 of people who gave money to charity with Correct your spelling
proportion
Use synonyms
age
 range of 51-56  Add an article
an age
the age
years
 old and older than 65 Use synonyms
had 
experienced a slight increase from 1990 to 2010. Unnecessary verb
apply
This
 number Linking Words
rosed
 from 35% to 40% for the group Correct your spelling
rose
age
 of 51-56 and 30 to 35 for the eldest range.Use synonyms