The bar graph indicates the 
amount
 of guests to three different London Museums from 2007 to 2012.
Change the quantifier
number
Overall
, during 2007-2012, there was an upward trend in the number of National Gallery's Linking Words
visitors
, meanwhile, the figure of Use synonyms
guest
 in the others experienced a downward trend from 2007 to 2009- 2010 before undergoing an upward trend in the Fix the agreement mistake
guests
last
 three years.
In 2007, Victoria and Albert was the most popular museum with nearly 14 Linking Words
million
 people. The same figure in the next Use synonyms
year
 and Use synonyms
then
, the sum of Linking Words
guest
 Fix the agreement mistake
guests
started
 decrease to about 6 Add the particle
started to
million
 guests in 2010. Even so, the situation Use synonyms
had 
changed Unnecessary verb
apply
positely
 when the number Correct your spelling
positively
politely
increase
 gradually from about 6 Replace the word
increased
million
 to 10 Use synonyms
million
 in 2012.
Use synonyms
Similarly
, British Museum had approximately 12 Linking Words
thousand
 Use synonyms
visitors
 in 2007 and Use synonyms
dreased
 by 6 Correct your spelling
decreased
dressed
thousand
 in the next two years. In 2010, there was a Use synonyms
steadily rose
 in the number of its from 6 Replace the word
steady rise
thousand
 to under 15 Use synonyms
thousand
 people.
Use synonyms
By contrast
, Linking Words
National
 Gallery saw Correct article usage
the National
a 
stability Correct article usage
apply
year
 over Use synonyms
year
 from above 5 Use synonyms
million
 Use synonyms
visitors
 to about 16 Use synonyms
million
 Use synonyms
visitors
 in 2012. Specifically, they Use synonyms
was
 the least popular museum with about 6 Change the verb form
were
million
 people in the Use synonyms
fisrt
 Correct your spelling
first
year
 and kept going up to about 11 Use synonyms
million
 in 2010. Use synonyms
Then
, they Linking Words
remain
 stable with the same figure in 2011 and peaked Wrong verb form
remained
in
 16 Change preposition
at
million
 in 2012.Use synonyms