The given line graph illustrates how many 
store
 was closed and new store Change to a plural noun
stores
Correct pronoun usage
apply
that 
opened in a particular country over a period of 7 years from 2011 to 2018. Units are measured in Correct pronoun usage
apply
number
 of times Change the article
a number
the number
close
 and open per year. Correct pronoun usage
they close
Overall
, it can be clearly seen that the shop with the highest level at the start of Linking Words
close
 Replace the word
closing
shops
 slightly dropped Use synonyms
whereas
 the opening Linking Words
shops
 experienced a dramatic decrease throughout the given period.
In terms of the shop with the highest level at the start, the Use synonyms
amount
 of opening Change the quantifier
number
shops
 stood at exactly 8500 in 2011. The consumption Use synonyms
then
 declined significantly by precisely 4000 in the next year, 2012. It Linking Words
then
 experienced a dramatic increase to 6000 in 2014. From Linking Words
the
 point onwards, it Correct determiner usage
that
fall
 moderately and hit a trough Wrong verb form
fell
to
 3000 in 2018.
Regarding the typical Change preposition
of
shops
 with the second highest level at the start, closure Use synonyms
shops
 started at exactly 6500 in 2011. The figure for Use synonyms
close
 Replace the word
closed
shops
 decreased slightly to around 6000 in 2014 before hitting a trough at exactly 500 in 2015. After that, the graph experienced a dramatic growth and remained stable by 10% between 2016 and 2018.Use synonyms